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Difference between gear oil and differential oil

  1. Difference between gear oil and differential oil. More on point, the lucas gear oil indicates it exceeds GL-5 standards and has limited slip Mar 22, 2009 · Gear oil is gear oil, at least the non-synthetics are for the most part, well loaded with sulphur which can't be used in engine oil anymore due to EPA regs. Nov 4, 2023 · The life of Valvoline gear oil in your car’s differential depends on your driving habits, but generally, it provides extended service intervals. It's not any cheaper, just easier to find without Sep 1, 2008 · I use 75W90 synthetic hypoid gear oil (actually quite unlikely you would find an 80W90 or 75W90 that is not a hypoid oil, if it is for the rear axle of any pickup truck, it is a hypoid oil). Pick the right product for your gear according to the recommended specification by the manufacturer for extended service. 0 to 32. In terms of number and ratings, motor oil has a standard viscosity rating of 5W/30. . Those gears require lubrication, which is commonly called differential fluid, gear oil, or gear lube. When to Change Differential Oil. Just wondering how much real world advantage in terms of fuel economy there could be by running a 75W-90 gear oil designated for 'non-limited slip differentials only' over 'for limited slip differentials' in differentials without limited slip. I didn't get any friction modifier since it already has the LS additive (any suggestions on this route?). 75W-90 Gear Oil: Similarly, 75W-90 gear oil is known for its versatility and compatibility, making it suitable for various automotive and industrial applications. Best I can tell this is accurate from my online research. The rear diff in my car specs an 80W90,and I was just curious about the difference between those two weight. 4 mm²/s, while gear oil 140 has a higher range of 24. Sometimes, the whole thing may need to be replaced. Higher GL rating numbers represent more severe applications; GL-1 is the least severe and can usually be satisfied with a motor oil, while GL-5 is the most severe GL rating. Strong wear protection against extreme pressure Using enhanced anti-wear and extreme pressure additives, our gear lubes withstand pressures up to 500,000 psi and prevent excessive wear. Are there any thoughts on Jan 6, 2022 · But how do you read a gear oil viscosity chart? Just read it horizontally. You may also find after changing your front axle gear oil that you have a creaking noise when you take corners if you have the Honda limted slip front axle Oct 24, 2023 · Additionally, gear oil is used in various components of the vehicle’s transmission and differential, and it’s available in a range of viscosities to suit different gear systems. Therefore, if your equipment operates in a wide range of temperatures, 75w90 gear oil may offer better overall performance due to its thermal stability and cold weather capabilities. It needs to lubricate the clutches, gears, and bearings in the rear end. Jan 27, 2015 · This is the same Redline gear oil that the majority of local dealership use. Nov 10, 2017 · In fact, many modern manual transmissions actually spec for automatic transmission fluid instead of a traditional gear oil. Red Line "Non-Slip" NS Gear Oil Red Line produces a Non-Slip version of their 75W90 and 75W140 gear oil. Jun 17, 2023 · I recently ordered 2 liters of 75w-85 GL5 LT gear oil for fluid replacement in transfer case and rear diff on my 2019 Highlander xle awd w/ the 3. So today I would recommend a 75W90 synchro oil,of which there are many available. A new formulation not like yester years GL-4. Synthetic gear oil utilizes higher-quality base oils, while conventional gear oil uses less-refined base oils. Feb 1, 2022 · Differential Fluid & Transmission Fluid Differences 1. engine oil I use would use rotella T6 5w-40. This is a GL-4 oil. In a manual system, two gears and a shaft mesh together when the driver engages the clutch. It is important to maintain and change the differential fluid regularly to prevent overheating and potential safety issues. It is always suggestible to go through all the mandatory performance parameters before choosing the gear oil as it will directly impact many components, including the engine. Oct 24, 2023 · While picking the most suitable gear oil between 75w-85 and 75w-90, clear performance parameters can change your pick in accordance with your needs and requirements. This will result in devastating damages to your engine. Seals and other key components should be inspected periodically and cleaned/replaced as needed. Learn More: Synthetic Oil vs. In order to elicit high Nov 2, 2020 · So, 80W-90 or 85W-140 GL-5 is fine for the rear end, but for the transmission, I’d recommend that you buy either generic non-hypoid 90W or 80W-90 gear oil, or oil that’s specifically labeled as “manual transmission fluid. This a GL-5 oil. When pressed for reasons, he cited that conventionals last longer in diffs and Currie (the manufacturer of his axles) will void their warranty if synthetics are used. Oct 26, 2023 · Lucas gear oil is well-suited for various vehicle applications, providing excellent lubrication and protection for gears. 5 liter Rear Differential with a G3 fluid, which is a GL5 70W80 @ $80. 5 liter Both take a little over . Jul 22, 2021 · 75W85 or 75W90: Deciphering the Best Gear Oil for You Explore how 75W-90 compares with 75W-140 in terms of viscosity and performance to help you choose the right gear oil – Learn more. Area Of Operation 1. If there are major internal problems within a differential or transfer case, then you will typically have repair options. 5 limited, and at 60k miles it says "Inspection Differential Fluid (front and rear gear oil)". The type of fluid a vehicle requires will vary based on factors like the type of differential design it has, whether it’s a standard-duty vehicle or a high-performance model, and whether it’s exposed to extreme duty such as towing and hauling. 25 differential. LX is Toyota and Lexus’s LT fluid with a limited slip additive on top of it. The main difference lies in their specific functions within Jun 6, 2024 · Engine oil is designed to withstand high temperatures generated by the engine, while gear oil is formulated to handle the extreme pressures and temperatures within the transmission and differential. The SAE classifies gear oils suitable for operation at one temperature on a monograde scale. Jul 14, 2020 · This may be a dumb question, but I'm looking at the mainentance schedule for my 2016 Outback 2. Semi-synthetic differential gear oil is a compromise between conventional and synthetic oils. Differential oil is found in the axle housing. Here's how it works, and what kind of gear lube to use. Jul 5, 2022 · The American Petroleum Institute (API) classifies gears using GL ratings, ranging from GL-1 to GL-5. I also think that will be easier for a fluid+filter to first extract the fluid before dropping the pan and plan to do so. Multigrade Gear Oil. The schedule recommends both fluids be changed earlier under severe driving conditions. Higher numbers indicate a more viscous oil. Dec 11, 2023 · The Difference Between Synthetic And Conventional Gear Oil. 75W90 vs 75W140: Detailed Comparison Delve deeper into the differences between 75W-90 and 75W-140, focusing on their specific applications and benefits Tests show synthetic oils make gears more efficient than mineral oils. The owners manual states to use the lt version or equivalent. 8L to my rear diff this past weekend (Jan 2021 build OR) before it got up to the fill plug. My question is can I use the lx version for my transfer case? Dec 11, 2006 · The AAM axles call for AC Delco 10-4091 (GM 19300457) 75W85; High Efficiency; Synthetic Hypoid Gear Oil. Understanding these temperature tolerances is crucial for optimal performance and longevity of your vehicle’s engine and transmission system. 75w85 vs 75w90 Tacoma: It’s best to use 75w85 gl5 type gear oil in the differential in a Tacoma truck. The viscometrics for gear oils are standardized in SAE J306. Gear oil helps to keep the gears running smoothly and it also helps to prevent them from wearing out. For example, an SAE 60 motor oil has a similar viscosity to an SAE 90 gear oil, an AGMA 6 gear lubricant and an ISO 320 hydraulic fluid/gear lubricant. This fluid does not contain friction modifier additives and will make the clutch plates engage quicker in limited-slip diffs. 1954 Chevrolet Bel Air undercarriage Courtesy Bring a Trailer Mar 11, 2024 · SAE 90 gear oil, on the other hand, might become too thick in cold conditions, leading to poor lubrication and potential damage to the gears. Side note, I added 0. The rationale was that the gear oil had a little greater viscosity and for the axle, the greater viscosity may actually serve as a better lubricant. does anyone have experience with the long life synthetic diff fluid? Since my 4Runner has an open diff in the rear I would prefer to use a diff fluid that doesn’t have a friction modifier already added. While they take the same form, the viscosity grades for gear oils are on a different scale than the viscosity grades for an engine oil. There may be slight differences between add packs in different engine oils, but with gear oil there's just not enough of a difference. For starters Aug 17, 2021 · Redline 75w-85 is probably about as close to stock rating as you get outside of Toyota’s version. When comparing 75w90 and 80w90 gear oil for vehicles, consider the viscosity and compatibility with differentials. Dec 12, 2011 · In a discussion about maintenance on my 2005 Jeep Liberty CRD, a long standing member of a forum insists that a conventional gear oil is the way to go in a differential. Reactions: Leo99 , gathermewool , 2strokeNorthstar and 6 others May 9, 2022 · Engine oils and gear oils both have anti-wear additives, and they both must lubricate, cool and protect components. The corresponding kinematic viscosity and Saybolt viscosity are also referenced on the chart. This is good for track use but will be noisy for regular street use. It's even higher if you purchase from a Dealer. Is too thick of a rear diff Oct 5, 2009 · The manual says the differential takes 7. 75 quarts). 4 mm²/s. Toyota and Lexus LX fluid. . engine oil viscosity, gear oil has a much higher density. 5. You can also use Toyota brand gear oil or redline lightweight 75w85s. For anyone who has had the pleasure of removing a Landrover gearbox you would do anything to not The impressive chemical stability of our gear lubes means extended fluid life, reduced deposit formation and better protection for seals and hoses. Gear oil is specifically designed for the critical components of your rear differential. Gear oil handles the gears’ sliding action, while differential oil allows the ring and pinion gears to rotate smoothly. Nov 4, 2022 · Differential fluid, also called gear oil, is the fluid that is poured into the rear differential housing. It provides the necessary lubrication to reduce friction, ensure smooth operation, and prevent wear. This oil is made to work under high-pressure circumstances instead of in high-temperature situations. The higher kinematic viscosity of gear oil 140 allows it to provide better viscosity-temperature behavior and withstand higher loads. When it comes to differential oil, most vehicle manufacturers will recommend that you change the oil at least every Dec 30, 2006 · Are there any pros or cons when choosing weights for a rear differential gear oil,like 75W90 vs 80W90 vs 75W140 vs 85W140? I`ve often wondered what the best all around rear differential GL5 gear oils are,weight wise,to ensure the longest lasting rear differential. GL5 discussion, we learned that the oils have sulfur and phosphorous additives for efficiency. looking forward to better mpg as well as the gears have fresh lubricant to help my car run more smoothly. So, the next time you decide on the right gear oil, consider your specific needs and rest assured that both Valvoline and Mobil 1 deliver reliable solutions for your vehicle’s well-being. This was long before synchromesh fluids were available. But synthetics are a different animal and might have compatibility problems with other types. Aug 11, 2019 · just like engine oils real synthetic drivetrain lubes excell! changed all drivetrain lubes to redline in my new to me 28 thou 2011 frontier SV V-6 4wd + netted 3 mpgs or so, used the 75-90 in the dana-nissan rear as recommended by dana, a real synthetic 75-90 on danas site not the 75-140 OE syrup which was semi-syn + just as costly. Jan 13, 2023 · The gearbox is another matter. It also keeps Sep 19, 2019 · Your differential allows you to corner safely while putting maximum traction to the ground. Mar 8, 2022 · Can I Use Engine Oil Instead of Differential Fluid? Never, under any circumstances, put engine oil in your differential. This distinction impacts the performance of the oils in several ways. Nov 4, 2023 · In a nutshell, a differential gear oil lubricates the part of your differential, and prevents metal-to-metal friction so that the differential won’t overheat. Gear oils, however, may be placed under extreme amounts of pressure, creating a propensity for boundary lubrication, a condition in which a full-fluid lubricating film is not present between two rubbing surfaces. You must change your differential oil at regular intervals just like any other oil in your vehicle, such as engine oil. 5 pints (3. Gear oil meant for high ambient temperatures is designated by a single number, such as SAE 50. Due to the weight of the machine you may be able to get away with a lower weight in the rear but I wouldn't do it. Some differential gear oils are made of mineral oil, while others are made of synthetic fluid that’s manufactured in a laboratory. The dealer sent me 1 liter of the 75w-85 GL5 LT and 1 liter of 75w-85 GL5 LX. The use of Lucas gear oil ensures less gear rattle and whine, as well as longer bearing and gear Oct 30, 2020 · I just watched a video for front axle of BX series. Not all vehicles use the same type of fluid in the differential, just like different engines require different types of engine oil. the redline MT-90 shifts so much better in my traded 200 thou Aug 4, 2021 · Monograde Gear Oil. 5 liter, so I would need to buy 2x . Hypoid gear oil is a popular choice, as it contains additives that enhance anti-wear and extreme pressure properties. Some modern automatic transmissions, integrated transmissions, […] Oct 5, 2022 · Synthetic differential gear oil is costlier than conventional oil, but it provides better protection for the gears. It is of high viscosity and usually contains organosulfur compounds. Nov 23, 2005 · Is there much difference in cold temperature thickness between a synth 75W140 vs 85W140 GL5 gear oil? Just a lil curious. Kendall ® SHP Syngear FE Our next-generation, synthetic, fuel-efficient (FE) API GL-5 automotive gear lubricant is designed for use in passenger car and truck axles with hypoid gear sets Dec 15, 2016 · I would never run anything less than 75w-90 in a gear set diff. The principal difference in gear oil vs transmission fluid is the area of operation. Back in the day everyone used differential lube,usually called EP or HD gear oil. Lubrication Properties Oct 17, 2023 · Gear oil 90 has a kinematic viscosity range of 13. Apr 8, 2024 · The role of gear oil is to lubricate the gears in the transmission, whereas the role of differential oil is to lubricate the gears in the differential. The difference between synthetic and conventional gear oil lies in their base oils. Conventional Oil; Can I Use Motor Oil For Transmission Fluid? Can I use 10w30 Sep 13, 2023 · 75W-85 Gear Oil: Both 75W-85 and 75W-90 gear oils are compatible with a wide range of manual transmissions, differentials, and gear systems commonly found in vehicles and machinery. SHC gear oil also made the test gears eight to nine percent more efficient. A polyglycol oil in the study resulted in the highest degree of efficiency: 18 percent more than the high performance mineral gear oil. I got some CRC gear oil additive just in case there is an issue. It’s specifically designed for heavy-duty or high-performance vehicles, where other gear lubricants may not be sufficient. Regardless of what your manual transmission uses, the fluid or oil’s primary function is lubrication—preventing metal-to-metal contact between the meshing gears. The gear oil can get corroded or dirty, so it may need to be replaced. Engine oil is much different than gear oil, mostly it cannot withstand high pressure. The formulation of these lubricating oils varies significantly according to their applications in equipment. 75w-140 is too thick, that is an oil to use in a large heavy truck towing weight. Gear oil additives can be a separate product or part of the gear oil’s base oil additive package for an “all in one” gear oil solution. By design, it resists breakdown from high heat, preventing acids and maintaining a barrier to prevent metal-to-metal contact while conditioning seals. For example, most modern gearboxes require a GL-4 oil, and separate differentials (where fitted) require a GL-5 oil. good for winter months and good for Feb 13, 2023 · Yes, I used a 5L OEMTOOLS 24389 fluid extractor for a trans fluid exchange. Jan 16, 2024 · Differential Oil Additives. Aug 17, 2014 · Gear oil is gear oil is gear oil. For the front diff the easiest option is a fluid extractor so that is what I used. It’s more affordable than synthetic oil but Jan 20, 2021 · Differential fluid is a type of oil that lubricates the internal components of the differential, ensuring it stays in optimal condition. Apr 2, 2019 · Gear oil and hydraulic oil are two different fluids that come under the category of lubricants. 1. This article is not intended to provide a complete recommendation of all possible applications for these fluids or for all gear sets. If you compare gear oil vs. These friction modifiers are critical to the proper operation of clutch type limited slip or Posi differentials. SAE 50 Engine Oil – While not strictly a “gear oil,” this type of lubricant is often the recommended lubricant for some manual-shift truck transmissions. Toyota and Lexus require LX fluid in most late-model limited slip differential applications, like the 2010 + AWD LS460. Q: What is the difference between gear oil and differential oil? Differential oil can sometimes be referred to as gear oil. It also resists breakdowns at high temperatures, ideal for use in performance vehicles. Jan 4, 2024 · Best of all, it has a great replacement interval of around 70,000 miles, making it the best gear oil ensuring optimal performance for the foreseeable time to come. 49/ . Mobil 1 – Which is the Better Option? Jul 21, 2008 · I was about to purchase the severe gear in 75w90 but then saw they offer a long life synthetic diff fluid. Differential Fluid. Choosing the right gear oil for your vehicle is essential to ensure the longevity and performance of its crucial components. May 20, 2011 · Front Differential with a G2 fluid, which is a GL5 75W85 @ $59. Just hoping to get some personal experience from out there using this gear oil weight with the Ford 10. It goes very fast with the low viscosity. But in contrast, your average gear oil can go around 75 or 90. The wider applications and simpler gear oil formulation contribute to its lower cost than hub oil. Instead of using the UDT, gear oil 80-90 was going to be used. The GM axles require AC Delco 10-4122 (GM 19368514) 75W85 Dexron Low Viscosity Gear oil. Feb 8, 2022 · Reducing Oil Consumption for Catalytic Converter Efficiency Learn how using the right gear oil, whether GL4 or GL5, can impact overall vehicle efficiency and reduce wear – Explore here. In the GL4 vs. Jan 28, 2023 · C7 Tech/Performance - Alternative to Dexron LS 75W-90 Gear Oil Differential - Hey Folks, Anyone using an alternative to the AC Delco Dexron LS 75W-90 for the differential, Part# 88862624? I found a Mobil 1 alternative that states it also has the friction modifiers. Oct 26, 2022 · A differential is a set of gears that allows a vehicle’s driven wheels to revolve at different speeds when going around corners or over rough terrain. 5 to 18. Liqui Moly vs. 2 days ago · Gear Oil. Nov 5, 2023 · 75w90 or 80w90 Gear Oil: Choose the Right One Longevity and Performance. What Is Gear Oil? The Gear oil is a lubricant specially designed for transmission, transfer case, and differential in automobiles, trucks, and other machinery. At 60k miles, it also says "Inspect CVT transmission oil". Aug 21, 2024 · What is the difference between gear oil and differential fluid? Gear oil is specifically formulated to lubricate gears and manual transmissions, while differential fluid is designed to lubricate the differential. However, the length of the intervals is different amongst each of the oils. ” If you want to go synthetic, check out Red Line MTL. Multigrade gear oils have additives that change their viscosity at Sep 15, 2021 · Not changing the gear oil can lead to accelerated wear of the gear set due to debris and potential rust and corrosion from water and oxidation byproducts. Therefore, engine oil should never be used in place of gear oil. Gear oil is different from engine oil. Jun 7, 2024 · Gear oil and differential oil serve distinct purposes: gear oil lubricates manual transmissions and transaxles, while differential oil lubricates the differential. Dec 15, 2020 · What’s the best gear oil for my differential? AMSOIL SEVERE GEAR Synthetic Gear Lube excels in protecting gears and bearings from the rigors of severe-service operation. Sep 15, 2011 · Hoping the rear diff doesn't have any limited slip problems with the lucas gear oil. This means gear oil 140 has a thicker consistency than gear oil 90. 5 liters of each, which is $280 just in gear oil. Differential or gear oil operates in the manual gearbox. bkgmo xcxsf wldpahp haf fdnfm gjnkv knjzq bvbh mlcd kfszfugs
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