Difference between 75w90 and 75w140 gear oil

Difference between 75w90 and 75w140 gear oil. Just a better product. If you don't, the 80W-90 (or 75W-90, 70W-80 etc. Hypoid gear oil is formulated with extreme-pressure (EP Yes, you can use 75w85 instead of 75W90. #13 · Jul 16, 2005. So much for FE in low viscosity gear oils in modern gear-train components with modern power-train modules and modern oils. There is no pint in going 'thicker' u less your overall driving habits would benefit from it. Murf 59. Not really. Oil Lubrication - Temperature Limits Jan 11, 2011 · I assume most folks here are using synthetic 75w-140 gear lube in the axles, especially the rear. Read Also: Synthetic Oil vs. Muscle Car applications like Ford Top Loader, Muncie transmissions, Borg-Warner T-10 and Super T-10. Originally Posted By: Rob_Roy. With your location will be better if you go with 75W90, to cover low temperatures. 80w90 is a more versatile gear oil. A lower viscosity generally means the oil will flow at a lower rate while in motion. Had you been using mineral oil then 80w90 EP would be the correct choice. Advantages of 75w90 Mar 3, 2012 · 510, CA. #17. Conventional Oil. Castrol/BMW branded SAF-XJ 75W-140 is equivalent to Castrol Syntrax Limited Slip75W-140. Dodge does now recommend syn. May 17, 2022 · In the case of 75w140 oil, its viscosity level is higher than that of 80w90 oil. Contains extreme pressure additives like our 75W90 May 10, 2016 · 114 posts · Joined 2007. If owner works vehicle, power mods, tows/plows, hauls. For differentials, I recommend a non-synthetic as it has been recently (and surprisingly) found that the gears run cooler with it than they do with a synthetic gear lube. The main difference is that the 75W90 oil has a lower viscosity, which means it flows more easily and is therefore better for cold weather starts. S. The problem is within earlier boxes as there is no way for oil to reach the splines. Popular in late-model Ford truck rear differentials as well as many other common models. SAE 90 can be any oil - 75W90 or 85W90 or only 90. All oil is synthetic. They both are safe to use with limited-slip differentials, open differentials, and manual transmissions in But, before changing your gear oil, make sure if the alternative lubricant is compatible with your automobile. The rear diff oil came out dirty and the magnet was caked. Due to its thinness, 75w 90 gear oil offers better gear protection than its thicker counterpart. So, the difference between "75W90" and "75W140" is that at operating temperature, the 75W140 will be considerably thicker than the 75W90 but at room temperature they will be about the same viscosity. I am very relieved when all 3 quarts of SAE 90 has finally been hand pumped into a rear diff. The base grade of a gear oil shows its underlying properties and is determined by a GL number: GL-1 to GL-3 – Basic and outdated oils for manual transmissions and axles that lack particular additives to cope with extreme pressures, friction and heat. Rear Diff - 75W140 or BRP 293 600 140. Dec 8, 2015 · Also, remember that although the Torsen type diff manufacturers may suggest mineral based/conventional gear oils, the 85W-140s will shear quicker (usually) than the synthetic based 75W-140s, despite generally starting out at a higher cSt @ 100*C, due to more VIIs added, especially when used for open tracking. I was going to put 75W90 mobil 1 synthetic gear oil into the tranny, but all they had was 75W140 gear oil. That explantion seems consistent with the idea that there really is no discernable difference b/t the weights in 99% of the applications. The Nov 7, 2014 · Let me say at the start that I did not use any BMW branded oil. Severe Gear 75W-140. In short, you can use 75w85 instead of 75w90 Dec 4, 2016 · 20w-50 is appropriate for between 20F and 112F and I keep the Corvette in a heated garage so never sees less than 50 unless warmed up in the fall for a ride then back in. 7L Engine With Electronic Limited-Slip Differential (ELSD): MOPARu0003 Synthetic Gear & Axle Lubricant SAE 75W-90 (API-GL5) or equivalent. Among various oil options available, the two most prevalent picks are 75w-85 or 75w-90 gear oils. 92 Pounds. While many motorists may assume SAE 90 gear oil is thicker than SAE 40 or 50 engine oil, their viscosities are the same, as this gear oil viscosity chart shows. Pros: Less slippery low sulphur formula compatible with brass synchronizers. 3803 posts · Joined 2004. I'll let others debate whether one is "better" than the other in a BMW final drive. just put some in my 5 spd Subaru WRX last night. MB Hypoid Gear Oil (85W90), MB Part No A001 989 17 03 cannot be found on any of them. The main difference between the two is the viscosity, or thickness, of the oil. 12K 600. 75w-90 Gear Oil | How To Read Gear Oil Viscosity Numbers Dec 15, 2020 · Commonly found in axle differentials, hypoid gears are used to transmit power from the driveline to the axle shafts. So I bought it, and put it into the tranny, and have ridden about 7400 miles with no problems. I think manufacturers are very aware of this when they make recommendations that differentiate the two weights. Dec 30, 2006 · Charlotte Metro area. The first number (75) represents the oil's viscosity in colder temperatures, while the second number (85 or 90) represents its viscosity at higher temperatures. 75W-85 Gear Oil: It has a lower viscosity at both low and high temperatures compared to 75W-90. The viscosity of an oil is how thick or thin it is. 75w90 oil has maximum protection for gears against wear. One major difference between the two are in the additives they use. They are designed to separate readily from water and provide exceptional protection over a wide range of operating temperatures and conditions. Mobil 1 Synthetic Gear Lubricant LS 75W-90. Oct 20, 2005 · May 5, 2009. Nevertheless, the area at the bottom of diff cover still looked a little oily even after it was carefully cleaned before. Clean out any cruddy, contaminated fluid. Oct 3, 2003. Jul 26, 2016 · 75w140 if hard acceleration is frequent (most probably) or towing. It is my understanding that both 75W90 and 75W140 are both 75W oils when cold, but change to either 90W or 140W when warmed up. Thicker oils like 75W140 may result in slightly lower fuel efficiency compared to 75W90 due to higher internal friction within the transmission components. Jun 6, 2022 · The difference between 75w80 and 80w90 gear oil is that the latter has a higher viscosity. temperature. Oil viscosity is the measure of its resistance to flow. Jan 31, 2009 · If you tow, use the 75W-140. Apr 15, 2015 · Apr 19, 2015. For gear oil, the number should be 60 or higher. May 15, 2010 · w211 uses 14mm. A 75w90 is more like a 15w40 motor oil. This is because 80w90 gear oil is designed for use in high-performance applications, while 75w90 gear oil can be used in a wider range of applications. Aug 29, 2012. In the case of gear oil, the first number (75) represents its viscosity at lower temperatures, while the second (90 or 140) represents its viscosity at higher temperatures. The 75W140 oil has a higher viscosity, which means it flows less easily but provides better protection at high temperatures. Originally Posted By: kballowe. 75w110 or 75w140 in heavy tow apps. Valvoline Flexfill SAE 75W-140 Full Synthetic Gear Oil 1 QT - This is a squeeze 1 quart bag and 4 quarts are about $55 on amazon. Feb 6, 2007 · The difference between SAE 90 and 75W90 is very substantial too. This is seems to be a drastic switch from the once required 75w-140 in the rear & 80w-90 in the front. Gearbox - 75W140. 75W90 is slightly thicker than 75w85, so it may provide better protection for your engine in extreme conditions. The key elements of the EP additives are Sulphur and Phosphorous. Jul 24, 2021 · Ron Nielson said: Remove the diff cover, scrape gasket material from both the differential housing and diff cover. Mar 3, 2024 · Viscosity refers to the oil's resistance to flow and is indicated by the numbers in the oil's grade, such as 75w85 or 75w90. May 29, 2023 · Understanding The Differences Between 75W90 And 75W140 Gear Oils Gear oils play an important role in keeping your vehicle’s transmission working properly. The amount of EP (Extreme Pressure) protection additives is the major difference between GL4 and GL5 gear oils. I am getting ready for my next two trips, and was thinking whether I should switch back to the Jun 19, 2017 · Jun 19, 2017. gregmondro. Mobil 1 Synthetic Gear Lubricant LS 75W-140. 75W90 oil has a viscosity of 75 cSt at 100 degrees Celsius while 80W90 oil has a viscosity of 80 cSt at 100 degrees Celsius. How much oil does a Ford e450 take? Product Description. 75W-90 gear oil is roughly eqivalent to 20W-50 motor oil. 50/quart. 80w90 gear oils. They are basically spiral bevel gears, where the pinion engages below the centerline of the ring gear. Higher viscosity gear oils can tolerate higher temperatures than lower viscosity gear oils. When it comes to gear oil options, 75w90 is a popular choice for many car owners. Apr 24, 2008. Instead, we recommend digging deep, exploring the differences between the two, and following expert advice and professional recommendations. Funniest question&response on here. Temperature Viscosities of fuel oils vs. On the other hand, 80W-90 gear oil is a heavier weight oil with an API rating of SM, SL, or SAE 80W-90. Dec 15, 2020 · Commonly found in axle differentials, hypoid gears are used to transmit power from the driveline to the axle shafts. The mineral oil is suitable for both icy and extremely hot weather conditions. This means that both 75W-90 and 80W-90 are gear oils. Thus, an oil or lubricant with a viscosity grade of 220 is thicker and more solid-like than an oil with a VG of 100 or 68. Using a high quality gear lubricant Like AMSOIL 100% synthetic Severe Gear that circulates Jan 3, 2021 · Meets transmission oil viscosity requirements of 75W90, 80W90, 90 and engine oil viscosity of SAE 40, 10W40 and 15W40. The difference is in their hot temperature index. No fuel economy penalty. Just recently at 38K miles (over 7 years later) I changed the rear diff with the same. SAE numbers or grades are assigned to evaluate oils. May 27, 2008 · It is recommended only for the rear diff and only for heavy towing and continuous use. A comparative viscosity chart, like this gear oil viscosity chart, can help determine if two or more lubricants have similar viscosities. Jan 13, 2011 · Owners Manual has this information: Axle Differential (Front-Rear): MOPARu0003 Synthetic Gear & Axle Lubricant SAE 75W-140 (API-GL5) or equivalent with friction modifier additive. 75w90 vs. Contains extreme pressure additives like our 75W90 May 10, 2024 · Two main competitors in the gear oil circuit are 75w85 and 75w90. 5 rear diff. Regular Differentials: 75W-90 is commonly used. Best Sellers Rank: #387 in Automotive ( See Top 100 in Automotive) A 75w 90 gear oil is recommended for older vehicles, while an 80w 90 gear oil is the best oil for newer cars. Viscosity Ratings. #1 · May 10, 2016. M. This product is designed for use in heavy-duty drivetrains that require gear lubricants with excellent load-carrying capability and where extreme pressures and shock loading . The 75W140 oil is thicker and does not flow as Jan 6, 2022 · AMSOIL Lead Technical Writer for more than two decades. 75W90 is like water, and SAE 90 is very thick at room temperature. There will not be a measurable loss of fuel economy by going with this slightly thicker oil. Instead of spending 20 a qt on the 140, spend 10 a qt on the 90 and change it twice as often if you feel the need. Unfortunately, active Sulphur reacts with some metals causing corrosion. I just rear online that 75w140 is denser and is used for heavy towing and continuous use. mobil 1 runs like $16 at checks and autozone for the 75-140. The two oils are very similar, and either one will work well in your car. Country of Origin ‏ : ‎ USA. 75w140 has a higher index of up to 405⁰ Fahrenheit, whereas 75w90’s is at 302⁰. 75w-140 vs. The Winner: 75w90 gear oil. You'll get a bunch of hits (or at least 75, as in my search) including this promising one: 75w 140 Sep 14, 2022 · 80w90 gear oil is typically more expensive than 75w90 gear oil. The 80w90 Gear Oil is thicker than 75w90 as it has a higher viscosity index. Nov 1, 2011 · Sounds like you got a good deal at $8. Mar 13, 2018 · Significance. According to the nissan oem website it shows that 75w140 is the gear oil that comes up when I put in my vin#. Mineral-based oils are generally used for colder climates while synthetic oils are better for warmer climates. Due to all the conflicting opinions, I stayed with the Mobil1 75W90, even though I do tow. This means it flows more easily at cold start conditions, making it suitable for colder climates and potentially contributing to better fuel efficiency in modern vehicles. Oct 6, 2015 · Which gear oil should you use for your truck's differential? This video explains what the numbers mean, and which one is best for your climate and work load. Z. Popular in Ferrari, Porsche and Subaru transaxles. If the diff has a history of failure, then a 75w140 or for hot weather areas. Date First Available ‏ : ‎ October 27, 2010. The 75W-140 is said to have a wider viscosity range – when more accurately it would be a wider temperature range. Therefore deemed to be good overall. DRYDENE GEARALL® ELITE SAE 75W-90 GL-5 is a synthetic, multi-purpose gear oil designed to meet the current requirements of most automotive and commercial manufacturers specifying API GL-5 fluids. Gear oils may look similar since they are all in liquid forms, but they differ significantly. If it is a dino oil, the VII's are needed to make it swing from low to high viscosity, depending on the viscosity spread needed for gearbox. 25 differential. It can replace any of these with no worries or risk. but you can pick up full synthetic in that same 75-140 from Wal-Mart for about $8. GL-4 – The world’s most common base oil grade, the oils of which contain good volumes of Mar 27, 2024 · What is the difference between 75W 90 and 75W 140 gear oil? A 75W-90 will be thinner at higher oil temperatures than a 75W-140. It’s the lubricant of choice for manual transmissions, differentials, and transaxles across various vehicles, from compact cars to heavy-duty trucks. Its just that the synthetic oil stays thicker relative to the dino oil as the temp rises, such that the 75w140 "behaves" like 140 straight weight dino at 200 degrees. The gear oil is tolerant to oxidation and thermal effects. 75w90 gear oil is less viscous and contains fewer additives, making it suitable Sep 13, 2023 · 1. Touch the Search link at the top of the page, put 75w-90 in the box and hit 'go'. Gearbox - XPS chaincase oil. Pennzoil conventional 80W-140. EP Additives. 75w90 is used for occasional towing and normal use. Both oils have approximately the same flash point, fire point, and pour point temperatures. In my '06 4X4 I replaced all the factory oil at 6800 miles. for the AAM 11. 38 x 3. However, there is one downside of using 75W90 oil in your BMW is that you will have to shorten the oil drain interval. You have a 11. 8. They come in different viscosity ratings such as 75w90 and 75w140, each having its own unique composition. Harley-Davidson recommends their Formula+ - which is roughly a 50 wt lube. It can tolerate high temperatures of about 300-350F. Sep 15, 2017 · AMSOIL Severe Gear 75W-90 is designed to replace, 75W-90, 75W-85, 80W-90, SAE 80 or SAE 90 gear oils. Mixing half 75-90 with half 75-140 quietens the noisy one to almost as quiet as the quiet one. The difference in weight means that the engine will be able to Feb 27, 2024 · Pros and Cons of 75w90 Gear Oil. #10. Table of Contents. Manufacturer ‏ : ‎ Valvoline. Mobil Delvac 1 Gear Oil 75W-90 is a fully synthetic drivetrain lubricant engineered to meet very demanding extended drain and warranty requirements. Heavy-Duty or Off-Road Differentials: Consider 75W-140 for added protection. I'll consider a step up to 75w110. What about the front? The literature I have seen (owners manual, FSM) seem to indicate that 80w-90 is OK for the front. These two oils come from either a synthetic or mineral base. Hey guys, I was looking through my manual for my new 2017 F150 & noticed that Ford now says to use 75w-85 Gear Lube in both the front & rear diff. So for Airzona, its all 90 weight oil. Nov 5, 2023 · Mixing gear oils of different viscosities can affect your vehicle’s gears’ overall performance and protection. Synpower 75W-90 is one of a relatively few commercially available gear oils that is also approved to MIL-PRF-2105E and API MT-1, which are additional standards for copper corrosion resistance, oxidation stability and seal compatibility. 75w-90 and 75w-140 or 80w-140 are going to be the same on startup or in cold weather anyway. Hypoid gear oil is formulated with extreme-pressure (EP Differences between 75w90 vs. #2. I switched back to a non-synthetic gear lube this past Wednesday (normal schedule) for 7. Jun 6, 2015 · And even if towing, required stronger film oil, then I think that probably the 75W-90, at 40-50C is not sufficient when the design asks for 80W-90 viscosity. The main difference between the two is the oil viscosity or thickness. Walmart has 75W-140 for about $11. Jan 3, 2022 · Also 1 more question. com. Mar 4, 2005 · G. #8. The 80W and 75W are the winter viscosities, meaning the oil gets thinner in the cold, but when it warms up, it turns to 90 weight. Nov 23, 2005 · For some comparisons, here are three of Amsoil's products, all synthetic. yep, the W reportedly means "Winter" and not Weight as many of us (like me) thought. Common Applications in Automobiles: 80W-90 gear oil finds its place in a myriad of automotive applications. Item model number ‏ : ‎ 773636. 38 x 11. Oct 17, 2023 · 1. Mar 17, 2023 · I see the following 75w-140 options Valvoline SynPower SAE 75W-140 Full Synthetic Gear Oil 1 - This in a plastic 1 quart bottle and is about $20 on amazon. 40c vis 109. Indeed, there are actually differences between 75w90 synthetic gear oils vs. Now, wait a second: 75w90 and 75w140 are the same viscosity at zero. its their supertech brand iirc. But you can use 75W90 gear oil interchangeably in your BMW car. The 75W90 oil is thinner than the 75W140 oil. In manual transmissions, it lubricates gears, shafts, and bearings. Probing into 75w-85 75W90NS GL-5 Gear Oil. Oct 27, 2010 · Product Dimensions ‏ : ‎ 3. Originally Posted By: dubie2003. The Speedback is one of the few non-hybrid ATVs that has an automatic transmission. Here is a link to all MB fluid sheets. The input spline wear problem has nothing to do with the oil. In this case, the 75w90 and 80w90 gear oils have slightly different viscosity grades, with the 75w90 being thinner at low temperatures. This means that 75W90 oil is thinner than 80W90 oil and will flow more easily at lower temperatures. Nov 21, 2013 · The Manual States: Front and Rear Diff - 75W90 or BRP 293 600 043. 75W140 has double the viscosity at 100 C than 75W90. There would be a about a $25 price difference on 4 quarts. #11. Look inside your diff for any pieces of metal, broken parts, damaged teeth, etc. The difference in viscosity between 75w85 and 75w90 gear oil is the thickness of the oil at low temperatures. C4 Tech/Performance - 75W90 vs 75W140 for Differential - Hi All, I would like some opinions. The result is a gear oil that helps provide excellent low temperature fluidity for safe lubrication during very low temperature Sep 12, 2015 · 40 posts · Joined 2007. B. 80w90 Differences. Oct 1, 2007 · Our 75W140 gear oil is a GL-5 rated product recommended for street-driven road car differentials where that viscosity is specified, providing excellent performance in both conventional and limited slip units. Max-Gear® is recommended for use in truck and automotive front or rear differentials, manual transmissions and lower gear units of marine engines that specify use of an API GL-5 or GL-4 fluid. Posted the table to make others Oct 5, 2009 · Just hoping to get some personal experience from out there using this gear oil weight with the Ford 10. How quickly or slowly motor oil flows affects how well it protects your engine. May 9, 2022 · Gear oil differs from engine oil. In this context, the lower the number, the thinner the oil The physical difference in thickness between 75W-90 and 75W-140 is pretty slight, either oil is fine in these light duty engines and drives. Some of it is specmanship and some of it is real. 75w80 gear oil is a light-weight oil that has an API rating of SM, SL, or SAE 75W-90. After replacing the oil seal the seepage around the axle appeared to had stopped. It depends. The grade is a literal measurement of When comparing 75W90 and 75W140 gear oils, the main difference is their flow speed and cooling efficiency. You can distinguish the Difference between your gear oils and quickly get them through on-site tests. 4 Differential Requirements:. However, 75w-90 gear oil becomes thicker in colder temperatures and negatively affects the performance of gears. The 75W140 oil is thicker, which means that it will take longer to flow. You shouldn't go heavier than 75W90 in the front and for normal duty and occasional towing 75W90 is fine for the rear. A 75w 90 gear oil is used in older vehicles with engines having fewer than 3,000 miles. 80W-90 (what your using) 40c vis 116, pour point -43. BMW recommends its users to use 75W140 gear oil in the gearbox. Sep 9, 2023 · One of the main differences between the two oils is the viscosity. #3 · Mar 4, 2005. Designed for transmissions and transaxles - helps to slow synchros for easier shifting across a broad temperature range. Motor Oils - Dynamic Viscosities Dynamic viscosities for motor oils SAE 10 to 50 for temperatures ranging 0-100 o C. This has been more than casual thought. 80w90. Severe Gear 75W-90. Jan 4, 2024 · To the naked eye, you might think both gear oils are similar. Primarily for passenger cars and light trucks, Pennzoil Platinum ® Gear 75W-90 combines a premium performance gear oil additive package with a high quality synthetic base stock. Before we make a differentiation between two of them, we need to know what they are and their specification. 615 posts · Joined 2004. Mixing these two oils may result in a blend between the two viscosities. The use of gear oil is determined by its grade or SAE number. 80W 90 gear oil is denser than the 75 W 90 gear oil. quote: 75W-140. Jun 22, 2010 · Red90. Sep 14, 2022 · 80w90 gear oil is typically more expensive than 75w90 gear oil. Let’s take a closer look at the pros and cons of using 75w90 gear oil. This gear oil offers several advantages and disadvantages that are worth considering before making a decision. Take a look at what are the differences between the two oils and find out which one is better for your vehicle. Max-Gear® is an ultra-tough, high performance, GL-5 automotive gear oil designed to provide maximum protection to heavily loaded gears Nov 8, 2006 · gdkenoyer said: > the lower number both being 75 would be equal in cold weather. Pennzoil Platinum Gear 75W-90. Fuel efficiency is influenced by the viscosity of the gear oil. 75w140 and 75w90 have the same cold temperature viscosity index, as denoted by the first number before the letter, and circulate freely up to -40⁰ Fahrenheit. 50/qt. The viscosity rating indicates the oil’s resistance to flow at different temperatures. Flowability and Viscosity. 75w90 Vs 75w140 Gear Oil: quick reviews. Nov 15, 2022 · 1. Both are the same thickness at lower oil temperatures. Apr 6, 2009 · Just a quick comment on this - I see no reason to choose a lighter cold pour weight gear oil in a colder climate as there will not be a difference in the viscocity of the oil after the diff warms up. I don't do any towing and my truck is a normal daily driver. Sep 25, 2021 · 75w90 has stable and robust properties recommendable for all drive applications in the vehicle. Formula+ is basically an 80w140 GL-3 gear oil. The difference is that it won't flow through as quickly, which means you'll get hot spots because it won't cool as efficiently, and it'll generate more drag. What's the difference between Amsoil's "Severe Gear" oil and the "Long Life Synthetic Gear Lube" both in 75w90? And, would one or the other be better in the trans vs the rear end? Severe Gear is much more additized, a much better base oil combo. 5" ring gear. 80W-90 and 75W-90 are both the same in Arizona temps. However, both front and rear diffs have 75w-140 synthetic on the metal tags, so that is what I used last time. Kinematic viscosities of some common liquids like motor oil, diesel fuel, peanut oil and many more. Usually, 75W90 is slightly thicker than 75w85, so it can offer better protection for your engine in extreme conditions. Below 40ºC-100ºF the viscosity of a 75w140 oil is far superior than 75w90 oil althought both are 75w (it is strange for me) Mar 17, 2021 · 75w90 is a simple step up 75w110 is vehicle is worked I use 75w90 in place of all 75w85 differentials and transfer cases. The Long Life gear oil is closer to M1, for example. 40c vis 247. Motor oil contains additives such as detergents and dispersants to combat Oct 5, 2022 · Its production is popular among automobile enthusiasts and technicians. Using it will consume more power. Jan 18, 2016 · Jan 19, 2016 #2. Conclusion: In the realm of gear oils, the choice between 75W-80, 75W-85, 75W-90, and 75W-140 involves a careful consideration of your vehicle’s specifications, the driving conditions you encounter, and the type of transmission and Apr 29, 2003 · An interesting response in the thread was that Ford uses 75W-90 for fuel economy over 80W-90, and that the difference in the weight has little to do with axle load or anything else. Doing some research, looks like Ford switched over in 2015 to the 75w-85 for Oct 28, 2002 · Both call for 80w90 GL5. Jun 4, 2005 · Black Max. I did some research, studied the spec sheets, and satisfied myself as to the following: Castrol/BMW branded SAF-XO 75W-90 is equivalent to Castrol Syntrax Long Life 75W-90. Mobil 1 102490 75W-140 Synthetic Gear Lubricant is a high-quality synthetic oil with excellent viscosity retention, regardless of temperature, and effective gear operation at extreme loads. These two types of gear oils have a cold cranking rating but are different. If I had 75-110, I would have used it in the noisey one. Recommended for GL-1, GL-3 and GL-4 applications and where most special synchronizer fluids are specified. Jan 26, 2010 · the significant difference is sheer resistance, load handling and viscosity at high temps. Viscosity. It provides better gear wear protection , but LT230s do not wear their gears, so it is a waste of time. This lowers the driveshaft away from the bottom of the vehicle. I used Redline 75W90 GL5 in the rear and front diff and transfer case. Both 75w90 and 75w140 are top-quality gear oils designed to meet the needs of most vehicle engines, although they differ in terms of viscosity level and density; with the latter possessing more load carrying capacity while Mar 1, 2022 · AMSOIL vs Valvoline Gear Oil 75W-140 Cold Flow Test at -50° C. 6, pour point -38. 3, pour point -54. That why I think that the replacement of 80W-90, in synthetic oil, is actually 75W-110. 75W90 gear oil has a consistent viscosity and thickness across a wide range of temperatures. However for synthetic 75w140 should be fine. Haven't noticed any drag after installing 75w-140 in front differential. Apr 7, 2022 · So, if you have a recent Mustang, you should use the 75W140 gear oil in the gearbox. 6 inches; 1. The dealer near me states: Front Diff - 75W90. 40c vis 194. Also, I have heard that the rear diff oil should be 1" below the fill oil plug. This means that it will flow more easily and be less likely to cause problems. However, 75W90 oil will not provide as much protection The main difference between 75w90 and 80w90 Gear Oil is the viscosity. I tried 140 in the transmission on my 2005 GS once and couldn't really tell much in the way of a noticeable difference. ASIN ‏ : ‎ B0049J5FJY. 75-90 is associated with a whine in one of my Subaru Rear differentials, the other is quiet with the same fluid. To counter this, de-activated Sulphur is used. Oil Fuels - Viscosities vs. This post will tell you the major differences between these two gear oils and how to select the best gear oil for your vehicle. GL4 Vs GL5: Key Differences. If you have a full synthetic 90 weigh gear oil it will protect and wrok from 70 to 95 weight. I like Lucas 85w-140 personally. As AMSOIL Severe Gear 75W-90 is an ultra-low-friction synthetic formula. Or just stick with 80W-90, not go for the thinner (at 40C) 75W-90. I had several bottles of 75W140 on the shelf and ran a load of it in my rear diff for 30,000 miles or so. ) is fine. 75W90NS GL-5 Gear Oil. Yes, you can use 75w85 instead of 75W90. Valvoline FlexFill Full Synthetic SAE 75W-90 Gear Oil 1 QT Pouch. As the viscosity of the oil increases, so does the density of the material, as a higher density results in oil that is less likely to respond to flow or other movement. Having pumped them both, they are pretty much the same at room temps as well. Each oil is a high-quality lubricant that comes with its own set of benefits and features, but if you’re looking for a complete comparison, you’re in the right place. Oct 10, 2009 · 75w-140 should be able to get in the bearings just fine, and it will lay down a stronger film (all else equal, of course). #1. 75w90 at low temperatures, or if hard aceleration is infrecuent (unlikely) Keep in mind this chart of viscosity vs temp. The two oils are very similar, and one will work better in your car. For example, both of them have viscosity differences, which you can check by yourself. I bought the truck at about 88,000 miles. It is reasonably unsuitable to jump in and choose without having adequate acquaintance. The Delvac product is excellent, if you can source it reasonably it is a great choice Best price I found was ~$47 shipped (free this month) for a gallon jug at zorotools. Axle Differential (Rear) – 5. Apr 15, 2017 · Yes, higher KV@40*C in 110 (140 cSt up) and 140 (175 cSt up) offering far thicker MOFT than a KV@40*C 100 cSt 75W90 would've provided stronger components protection far beyond the 260k miles stated. 01, pour point -58. Jan 4, 2024 · Yes, you can use 75w85 instead of 75W90. Install new diff cover gasket and install bolts. Pros of 75w90 Gear Oil Jul 17, 2022 · The main difference between 75W90 and 80W90 oil is the viscosity. #8 · Sep 15, 2015. 6. Jun 15, 2023 · Difference Between 75w90 and 75w140 As in “ 10w30 vs 5w40 “, we are making a comparison with different aspects. 80w90 and 75w90 gear oil vary considerably in their usage, configuration, ingredients used, and other things you Mar 4, 2024 · The choice between 75W90 and 75W140 gear oils can significantly impact these factors. ra hz pj dt mq nf fv po to yk