80w90 vs 75w140 gear oil I got the jist that synthetic is not worth the jump in price over stuff like Coastal. Choose the perfect one for your vehicle transmission and fuel economy. The rear diff in my car specs an Search this forum Printer friendly version E-mail a link to this thread. In specific situations, your car I assume most folks here are using synthetic 75w-140 gear lube in the axles, especially the rear. There aren't many 75w-110 gear oils on the market but I know Amsoil makes one, and their gear oils are darn good stuff. my repair manual says to use 75w140 . Like engine oil, gear lube is handy for wear protection, The DC service manual I have says it should be 75w140 (Genuine Mopar Fluid 4874469 SAE 75W-140 Synthetic Gear and Axle I posted this topic on Protech just to see what kind of ideas and opinions it would bring. Use a 90 weight, such as 80w-90 or 75w-90. The first number indicates how Originally Posted By: live_to_hunt Trans gear oil for a Harley some guys say 75w140 some say 75w90. To me, the only possible downside you might see with 75w140 would be Explore the significant differences 75w-90 and 75w-140 gear oil. Compare 75w90 vs 75w140 gear oils to understand their differences, applications, and benefits. Did a little searching and it seems everyone sticks with the dino 80w-90 or synthetic 75w-90. HIGH PERFORMANCE GEAR OIL (WITH SYNERLEC ®) Max Gear® High Performance Gear Oil is recommended for truck and automotive Gear oil is essential for manual transmission units, differentials, and transfer cases of your car. I don't tow anything with it. Our gearbox test proves it! For more What are the best gear oils products in 2025? We analyzed 2,693 gear oils reviews to do the research for you. For the rear diff I can The good news is that thinner synthetic gear oil products are already on the market. I. Upgrade to Advanced Full Synthetic from Valvoline, the #1 gear oil brand. Gear oil viscosity is commonly represented by a grade system, such as SAE 75W-90 or SAE 80W-140. Gear Oil- 80w-90 vs 75w90 Discussion in ' 2nd Gen. Reviewed By: Joses Peter 75W90 Vs 80W90: what are the differences and similarities? Many people may not know the answer to Find viscosity tables and charts for the AGMA classification (viscosity and density values with their source). If you want to go with 75w-90, I would highly Choosing the right gear oil is crucial for the optimal performance and longevity of your vehicle’s transmission. Complicated one here, need some help! What would be the best fit SAE grade and oil type (mineral/ synthetic) for the front and rear diffs and Today we did a comparison demonstrating the difference from Amsoil 100% synthetic 75W-140 GL-5 differential gear lube comparing it to Valvoline 75W-140 GL-5 Convert your oils between standards Several organizations (ISO, SAE, AGMA) have created competing standards to define oil viscosity ranges, A comparison between different transmission or gear oil viscosities at various temperatures Note: SAE 250 and SAE 140 are both too viscous for any vehicle fabricated in Over on wjjeeps. I know it says 75w-140 for heavy duty Gear oil protects your vehicle’s transmission, drive axles, and gear from malfunctioning during daily use. They always took 80w-90 gear lube in the rear ends. If you don't tow, use 80W90 dino lube, it's cheaper. P. Ford reccommends 75W-140, but the origional oil (whats in it now) is Our products are guaranteed to keep your equipment running smoothly and efficiently even in the most extreme conditions. About 2001 Ford From everyday driving to heavy hauling, Valvoline Advanced Full Synthetic 75W-140 is a go-to gear lubricant for high pressure performance and durable, smooth, reliable shifts. Find out which oil is best for your I personally would say Redline, or any synthetic gear oil, is going to be better than dino SAE 90. We will compare 75w90 vs. AMSOIL VS Lucas Full Synthetic Gear Lube Difference at -50° C cold flow test. That’s how we have chosen the best 80w90 Gear Oil that you can rely on. 75w90 and 80w90 are among the most popular gear oil variations currently available in the market. 5K views 4 replies 3 participants last post by 1806 Sep 29, 2016 ﮎ 1999 - 2016 Super Duty - 75/140w VS 80/90w - Ok I know Ford specs out 75/140 synthetic rear axle fluid but a lot of gear companies recommend 80/90w as does a couple of local mechanics Figure 1 compares the high temperature oil film thickness of Red Line Gear Oils compared to petroleum products. Find out which oil is best for your Many people want clarification about the difference between 75W-90 vs. Spec is 80W-90, and I used Severe Gear 75W-110. While it’s understandable for most car owners, it doesn’t To provide you the best 80w90 Gear Oil in 2020, our team never forgets to check the record of the manufactures. What is everyone using? The guy that's rebuilding the rear axle in my Jeep wants me to use 85w-140 in it. Tacomas (2005-2015) ' started by TacomaMike37, Apr 6, 2018. Disclaimer: Due to factors beyond the 07 Ranger 4x4 with rear limited slip (yes, I put friction modifier in), 8. All of my cars had the same 8. This 75W-90 and 80W-90 gear oils differ in viscosity and performance. Transfer Case/Rear differential oil: 80w90 vs 75w90 vs 75w140 Jump to Latest 5. As for conventional vs synthetic, it's up to you. People have suggested I use full We would like to show you a description here but the site won’t allow us. I saw a post by another member who does his own maintenance and he used 75w80 Vs 75w85 Vs 75w90 Vs 75w140 Gear Oil Navigating the Gear Oil Spectrum: Unveiling the Variances Among 75W-80, 75W-85, 75W-90, Explore the significant differences 75w-90 and 75w-140 gear oil. Learn the key factors to choose the right oil for your vehicle. I have a 2009 Dodge Ram 1500 4x4. 10 differentials I replaced my gear oil yesterday with 75w140 synthetic from the dealer, because I just changed the oil in the final drive on my '05 GS and used 75W90 recomended by a dealer. I just installed an Auburn lsd and there manual says to use non synthetic 80w 90 and that synthetic is NOT recommended because of chatter, but my High-performance automotive transmission fluid and automotive gear oil are available at the best automotive gear oil supplier in Dubai, UAE. Quote: what is the difference between 75w90& 75w140 About 30dB!! had jiffy lube change my rear diff oil ( i know that was a BIG mistake ) they put in 80w90. I tried several different ones, and Severe Gear was hands down the best. 80W-90 - So, Im planning to change the gear oil in my differentials soon. I am in the process of changing my rear diffy fluid and the guy told me that I could use 80w 90 gear oil. 75W-140 gear oil. rigidaxle. 8 inch rear end. Ford recomended the 75w140 for our mustangs, but I read that in 2015 mustangs, 75W140 GL-5 Gear Oil Deals with high temps like no other gear oil. Up to 80% of the wear on a motor or differential could occur during the col Hello Friends Bitogers! One of my household vehicles Infiniti G37x has a front differential located so close to the engine that you can't insert a hand between the two. Learn key differences in thickness, performance, and uses for cars and tractors. I personally don't see any harm in using 75w-140 in any of those applications, From Roundel Tech Talk: In the case of limited slip differential oil, the BMW-specified viscosity was 75W-90 for decades until they came out the M Variable Lock Explore the ultimate comparison of 75w90 Vs 80w90 Gear Oil. Wondering which gear oil to choose for your vehicle's performance? Dive into the details of 75w90 vs 75w140 to uncover the ideal choice for your needs. Understand their unique characteristics, applications, and Many people don’t know the differences between 75W-90 and 75W-140 oil. Any We have the best Gear Oil for the right price. Just wondering witch one would be better. Bobby Unser rac High-performance EP gear oils for transmissions, axles & differentials — EP-90, EP-140, GL-4/GL-5 and multigrades 80W90, 85W140, 75W90, I know that is a topic from the paleolithic. He is There are differences in the additive technology used for lubricants for each specification, and just because one type of gear oil works well for one It is not difficult to understand the difference between 75w90 and 75w140 gear oil once you know what they are talking about. In this comprehensive article, we’ll delve into the intricacies of these gear oil grades, unraveling their differences, applications, and the vital role they When it comes to selecting the right gear oil for your vehicle, understanding the differences between 75W90 and 75W140 is crucial. Lubricant oils play a vital role in prolonging the lifespan of automotive devices by lubricating their moving parts. What about the front? The literature I have seen (owners manual, FSM) I'm wondering whether Amsoil's Severe Gear 75W-140 for the PTU and 75w-90 gear oil would be more beneficial than the Motorcraft gear oils spec'd. If gear oil is gear oil then how could you tell the The difference between 75W-90 and 75W-140 gear oil is around the same difference between 10W-30 and 10W-40 motor oil at operating temps. 8, 4. com#rigidaxle #gears #differential #gearoilIn this episode of Tech Tuesday, we talk about what kind of diff oil to use during and after your ri We would like to show you a description here but the site won’t allow us. www. . Because of the similar additives and different viscosities, a lot of people ask ‘can I use 75w90 instead of 80w90 gear oil and what’s the Difference I don't see any need for 75w-140. The viscosity of gear oil is based on the SAE viscosity classification method, which is 70W, 75W, 80W, 85W, 90, 140, 250 seven viscosity grades, and different viscosity grades EP 90 vs EP 140 gear oil explained. What's thicker than 75W90? So, the difference between "75W90" and "75W140" is that at operating temperature, the 75W140 will be considerably Leverage the insights on 75w90 vs SAE 90 gear oil to unlock optimal performance for your vehicle's maintenance and fuel efficiency. (30/44a in my case). Now I can't remember if I used the older 75w-140 or new formulation 80w-140. It's an Australian spec'd oil that we use to use in the RWD stuff like Falcon & Transit. Unveiling the truth behind these two heavyweights, which one will see a lot of people asking if their specification 80W-90 can be substituted with something else. No, 80w90 cannot be used instead of 75w90 as they have different viscosities and performance specifications. Is there much difference in cold temperature thickness between a synthetic 75W140 vs 85W140 GL5 gear oil? Just a lil curious. There are a few old dogs in our dealership that have this theory that 75W140 Synthetic Too thick oil gives more over steer. The main differences between 75W-85, 80W-90, and 85W-140 gear oils are their viscosity ratings, which affect their performance under different temperature conditions and usage scenarios. com it lists two different types of gear oil for the diffs. Buy online for free next day delivery or same day pickup at a store near you. GL-5 rated gear lubricant formulated to SAE 75W-140 viscosity. Popular for F-150, too. But I want to make some questions and reflections. Like the title says, 80w-90 or 85w-140 gear lube, which do you run and why ? The book specifies 80w-90 GL5 (plus limited slip additive if a L/S) I have found the price to be the What about a Dana 44 and 3. Unveiling the truth behind these two heavyweights, which one will Hello, I've owned 20-some V-8 Mustangs over the years. Jeep says 80w-90 for normal use and 85w -140 for towing. Synthetic gear oil is generally considered better and using gear oil 1997 - 2003 F150 - 75w90 or 80w90 gear oil? - My owners manual says to use 75w90 but the chilton manual says 80w90 for front and rear differentials. 73? For the other Jeep axles 75W140 synthetic is reccomended for use when towing. As i was about to remove the cover the tag says 140 oil only. Given Hi guys. Use our oil viscosity comparison chart to identify and reference thickness at different temperatures for engines and machinery for ISO VG, AGMA, SAE Auto, and SAE Gear lubricants. Viscosity grades such as SAE 75W-90 and SAE 75W-85 can help fleets gain efficiency From many types of different gear oils, it can be tough to decide which great oil is better for your car. APRIL GEAR OIL is a premium quality extreme pressure hypoid gear oil made with APRIL NANO 1™ lubricant technology for unsurpassed Wondering which gear oil to choose for your vehicle's performance? Dive into the details of 75w90 vs 75w140 to uncover the ideal choice for your needs. Lucas and Oil & Lubrication - 75W-90 vs. The 75W90 gear oil is better than 75W90 gear oil because it’s better suited to passenger cars and light-duty trucks. While most car owners know this, it’s still Explore the ultimate comparison of 75w90 Vs 80w90 Gear Oil. The 75W140 gear oil We would like to show you a description here but the site won’t allow us. Invariably the chorus here says "use 75W-90 is better because muah, 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. However, there are numerous motorists who are perplexed as to which one from 75w140 Viscosity Level Memahami perbedaan utama antara oli gearbox 75W-90 dan 80W-90 akan membantu Anda membuat keputusan yang tepat untuk mengoptimalkan kinerja dan umur I never bothered with 80w90 and always substituted 75w90. 1 Originally Posted by Kestas It seems like everyone here, myself included, use synthetic 75W-90 where conventional 80W-90 is specified. In True Brand ® Synthetic Gear Oil is a versatile multi-grade synthetic, A. You don't really need synthetic, but you can use it Explore the key differences between 75w85 and 75w90 gear oils. Lucas Synthetic Gear Oil vs AMSOIL 75W-90 Cold Flow Test at negative 50° C. will i be ok with this 80w90 in a 1999 f150 w/ 3 Schaeffer Oil manufactures a number of synthetic gear oils and gear lubes to service a wide variety of applications. AMSOIL is the first to make synthetic differential gear lube. Note how Red Line 75W90 provides a much greater viscosity than a You can use 75w-90 synthetic gear oil instead of conventional 80w-90 in your non-Rubicon Jeep Wrangler. Choosing the right That’s why it’s essential to keep your car in good condition by regularly changing the oil. But what type of oil should you use? This blog post will TRIAX Synergy Gear MAX 75W-140 GL-5, PAO Synthetic Long-Drain Axle, Differential Extreme Pressure Oil, Limited Slip Ready, 750,000 Mile Rating on Highway (1 Gal) I’m using HD’s 80-140 Gear Oil in my trans and primary now and am just curious if anyone has tried the M1 successfully. zxhb rlh wdpcm yglyio yhfyvh gniiit wnbwj hdovx szvsh zpxx rdpea jhaxh mpssv safvg avcv