Analytical cookies are used to understand how visitors interact with the website. Causes & Preventions. 80W-90. Check it so every often but never changed it yet in 3,000 or so miles because it does not wear out like fossil lubes do. Its thicker when exposed to high heat and thinner under colder, wintry conditions than 80W-90. For instance, an SAE 80W gear lubricant may have the same viscosity as an SAE 20W or SAE 30 engine oil and SAE 90 gear lubricant viscosity can be similar to that of an SAE 40 or SAE 50 engine oil. My predecessor made the mistake of specifying a gear oil in an axle with bronze faced friction disks got the brake and I had to write a multi-million dollar program to replace all the brakes and fill with a synthetic. High-pressure gear oil with mineral oil base. HYPOID GEAR OIL: WHAT IT IS AND WHEN TO USE IT - Kendall Motor Oil I don't see straight 90 anywhere. Hypoid gearboxes are found in most of today's modern vehicles. Maintaining the gear oil in your vehicle is crucial to the life of your manual transmission and differential. 80W90 means the oil flows like a 80 weight oil cold, yet lubricates like a 90 weight oil when hot as defined by the SAE test procedure. CRC makes it and I think that it is available at Advance Auto Parts. The best oil for your vehicle depends on various factors, including climate, engine type, driving habits, and operating temperature. How to Read a Gear Oil Viscosity Chart - AMSOIL Blog A number of automotive manufacturers require lubricants that meet their own in-house specifications. SAE 80W-90 automotive gear oil specially formulated to satisfy the lubrication needs of most limited-slip rear axles. Used in several applications, like; Limited-Slip differentials, Manual transmissions, helps and protects the gear from significant damage. The 80W-90 gear oil can be used in extreme pressure conditions and as a lubricant for some non-synchronized manual transmissions in heavy-duty trucks or buses. The use of gear oil is determined by its grade or SAE number. It will be quite thicker than 75W-90, thats why fuel economy will suffer. This gear oil is recommended for conventional and limited slip differentials. When Should You Change the Transmission How to Reset the Oil Light on the 1998 What Is the Difference Between 5-30 & manual gear box image by Gonalo Carreira from, Copyright 2023 Leaf Group Ltd. / Leaf Group Media. It may be used where an SAE SAE 90 is used unless synthetic oils are required. What I mean was, prior to the specification change in the past a 90wt was generally thicker then say a 80w90. However, this may affect the gears efficiency due to thickening during cold and moderate temperatures. Will Gear Oil 80w-90 work in it? In that case, 75W90 gear oil is a good choice because it will flow more efficiently and provide better lubrication for your gears. Though 75w90 is costlier, it is worth it. If your car is subjected to extreme environments or driving conditions, it may be necessary to change your gear oil more often than your owner's manual recommends. The Society of Automotive Engineers (SAE) publishes a viscosity grading guide (J306) for gear oil, which is a different grading scale than the SAEs engine oil scale (J300). The 80 shows that the oil works excellently in cold temperatures, while the number 90 denotes the 80w90 gear oil viscosity or thickness at 100% degrees Celsius. Viscosity of gear oils may be stabilized by polymeric additives (viscosity index improvers).Viscosity of such gear oils is specified at both high and low temperature. These cookies track visitors across websites and collect information to provide customized ads. What does EP mean? jQuery("#TYMessageContact").css("display","block"); Cat FD-1 - Intended for final drives and axles in Caterpillar equipment types that do not contain friction materials (i.e. 75W-90 is a type of gear lubricant that is stable and can resist thermal damage. }); Yes it is the sameclose enough anyway. Available in a wide range of packaging including: Supports the performance requirements of: 2023 All Rights Reserved | Terms & Conditions D-A GearTec is designed to support the performance requirements for the lubrication needs of gear trains and differentials requiring the use of an extreme pressure lubricant, including limited-slip type configurations. Its thicker when exposed to high heat and thinner under colder, wintry conditions than 80W-90. This is known as an oil?s viscosity. It can stand as high temperatures of around 300F to 350F. 75w90 has constant viscosity and thickness in a broad spectrum of temperatures. This chemical helps the oil operate under extreme pressure. Adding the 80W to it just means that it has been tested to barely flow at -26C. Gear oil meant for high ambient temperatures is designated by a single number, such as SAE 50. Some people have difficulty accepting this this. But opting out of some of these cookies may affect your browsing experience. This brings us to the comparison of 75w90 vs. 80w90 gear oils to find which one is preferable for our specific needs. All rights reserved. Best in quality. // Get the form's jQuery element and hide it To remove this confusion and worry, we will compare these products side by side accurately so that you can find a better solution for keeping your car or trucks gear option safe and running. How to select the right ATF for optimal performance The transmission is a complex system, and every piece needs to, Where and when to use high mileage oils for optimal engine performance Which vehicles should be using high mileage oil?. This gear oil works in high temperatures, from 300F to 350F. Any help is appreciated, thanks. HYPOID GEAR OIL: WHAT IT IS AND WHEN TO USE IT, AUTOMATIC TRANSMISSION FLUIDS AT A GLANCE, 2023 Phillips 66 Company. My tractor manual specifies SAE 90 for my front diff & finals. Durable. This comprises a range of 13.5 18.4 mm/s. Gear oils may look similar since they are all in liquid forms, but they differ significantly. jQuery("#TYMessage").css("display", "block"); Work Horse SAE 80W-90 meets or exceeds the requirements of many gear, transmission and automobile manufacturers. This makes 80W90 gear oil a better choice for vehicles that operate in high temperatures and under heavy loads because it will provide more protection against wear and tear. It is used in automatic and manual transmissions, and assists the gears in shifting smoothly. Therefore, the kinematic viscosity of 80w90 gear oil ranges between 13.5 to 18.4 square millimeters/second. This gear oil works in high temperatures, from 300F to 350F. Another factor to consider when choosing a gear oil is your climate. Causes & Preventions. UNDERSTANDING THE DIFFERENCES IN GEAR OIL SPECS | Castrol USA I hold a Masters in Supply Chain Management working in an automotive company. Engine TypeThe engine type in your vehicle is also a factor to consider when choosing a gear oil. 75W90 gear oil has a lower viscosity than 80W90 gear oil, meaning that it is thinner and less resistant to flow. The oil is poured on the rear differential housing, lubricates the gear bearing, and clutches in the rear end. It is a little pricier compared to the 80w90 gear oil cost. The 75W-90 gear oil is used under extreme pressure conditions and can be recommended for limited-slip differentials and for use in colder climates. // Add an onSuccess handler Stream graduated with a Bachelor of Arts in communication as a presidential civic leadership scholar. It does not store any personal data. This type of gear design tends to be noiser and, in automotive applications, inefficient. This means that it requires more frequent oil adjustments and, thus, more maintenance. Rxmechanic.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to Amazon.com. // Add an onSuccess handler You also have the option to opt-out of these cookies. Its thicker when illuminated to high heat and thinner under colder, wintry conditions. Always consult your owners manual for proper oil viscosity and quality selection guidance. Synthetic gear oils are frequently multigrade oils that are formulated robust additive chemistries. }); We also use third-party cookies that help us analyze and understand how you use this website. A multi weight oil is more "true . The second number defines how thin the oil must be at 100 degrees Celsius. Can I use SAE 80W-90 instead of SAE 90w? If you are unsure which oil to use, consult your vehicles owners manual or ask a qualified mechanic. Like most people, you probably dont think about your cars gear oil very often. Yes it is the same close enough anyway. This product is formulated with quality base oils and carefully selected additives resulting in a product which will provide . It is, therefore, most ideal for preventing wear and tear in high temperatures. Uses. Inadequate operating viscosity with lower viscosity grade, would wear out the worn bearings sooner , not later. The SAE classifies gear oils suitable for operation at one temperature on a monograde scale. The first-class paraffinic base oils and the coordinated, innovative additives give the lubricating film an extremely high level of tear resistance, thereby preventing direct contact with metal. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network. most any auto parts stores that sell 80w will work. This oil is made to work under high-pressure circumstances instead of in high-temperature situations. CRC makes it and I think that it is available at Advance Auto Parts. The book specifies 80w-90 GL5 (plus limited slip additive if a L/S) I have found the price to be the same from most sources/brands, so cost should not be a factor. Simplicity . The cookies is used to store the user consent for the cookies in the category "Necessary". As with all engine fluids and oils, regularly maintaining and changing hypoid gear oil can extend the life of a vehicle and its performance. 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. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". 80W90 gear oil is a good choice for vehicles that operate in high temperatures and under heavy loads because it will provide more protection against wear and tear. Most experts believe that 75w90 gear oil is more efficient and gives you value for your cash. SAE 75w, 80w, 85, 5w, & 10w. Viscosity Charts - Bob is the Oil Guy The latter is denser and provides better protection in extreme weather conditions 75w90 gear oil is thinner but more stable. 75w90 gear oil is a synthetic gear lubricant made entirely from synthetic base oils and additives. They are a type of spiral bevel gear with a left-hand spiral angle on the pinion and a right-hand spiral angle on the crown. Following is a table with the SAE gear lubricant viscosity grades: Axle and Manual Transmission Lubricant Viscosity Classification; SAE J306 OCT 91 . For example, SAE 80W-90 gear oil has a low-temperature rating of 80 and a high-temperature rating of 90. 75w90 is ideal for axles, final drives, and heavy-duty manual transmissions. RAVENOL Multipurpose Gear Oil SAE 80 GL-4 is a EP (extreme pressure) gear oil designed for manual transmissions, distributor transmissions, steering transmissions, as well as normal loaded axle drives. SAE 90 gear oil is equivalent to 50wt engine oil (SAE 80 = 30wt), so you could always dump that in instead if you want. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. The number 90 refers to the kinematic viscosity of the gear oil at 100 C. }); Let us see in detail what brings the difference between 75w90 vs. 80w90. Like monograde engine oil SAE grades, monograde SAE gear oil grades use a single number, with gear oils for cold seasons using the identifier 'W' and oils for hotter, summer conditions using just a number. PDF Lubricant Storage, Stability, and Estimated Shelf Life Thinner oils work more freely and smoothly in low temperatures. However, you should not mix PAG (polyglycol synthetic oils). This gear oil works perfectly on temperatures ranging from -20F to 400F. 2023 TractorByNet.com | TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners. A sliding action of the gear tooth face is also introduced in combination with the rotational motion with a hypoid gearset that is not present in many other gear set designs. For bearings and gears protection, you should select 80W90 ,which is equivalent to ISO 150 gear oil. Additives are used to improve the performance of gear oils. #1 Group, Another question, this time about manual transmission oil. Note that 90W does not exist, even if Star Brite distributing incorrectly labels its product as such. Gear oil viscosity is defined in SAE J306, which has been revised. They are commonly used in rear axle differentials, where they transmit power from the driveline to the axle shafts. Well-lubricated gears have less probability of pitting, breaking, or grinding against each other under pressure. The good news is that thinner synthetic gear oil products are already on the market. Save my name, email, and website in this browser for the next time I comment. Sae 90 gear oil equivalent - The Equivalent You are using an out of date browser. Passenger car or truck manual transmissions experiencing difficult shifting during cold weather while using conventional mineral based, SAE 90 or higher viscosity GL-5 oils, will typically improve oil flow characteristics when using PENNZOIL AXLE SAE 80W-90. 80w90 is the new 90w. // Get the form's jQuery element and hide it I am a resourceful lady with vast knowledge and interest in vehicles. For reliable lubrication and low-wear synchronisation. It is recommendable for use in colder climates and limited-slip differentials. D-A GearTec is designed to support the performance requirements for the lubrication needs of gear trains and differentials requiring the use of an extreme pressure lubricant, including limited-slip type configurations. The gear oil is mixed with additives meant to increase its breakdown resistance for the sliding surfaces in the gear mesh. It may not display this or other websites correctly. SAE 90 gear oil is equivalent to 50wt engine oil (SAE 80 = 30wt), so you could always dump that in instead if you want. The SAE classification system is a way of defining how thin or how thick an oil is. Rust-prevention gear oils protect and extend the life of gears running at higher temperatures and are best used in low-load gearboxes. A popular misconception is that SAE 80W gear oil is heavy. If you drive in stop-and-go traffic or do a lot of heavy braking, 80W90 gear oil is a better choice because it will provide more protection against wear and tear. SAE Viscosity Grades - viscosity table and viscosity chart :: Anton This blog post will discuss the differences between 80W90 and 75W90 gear oils and help you decide which one is best for your vehicle. AGMA are specified at 40C. Both 80W90 and 75W90 gear oils have their benefits and drawbacks. link to Why Does My Car Get So Dusty? 75W90 gear oil is a good choice for vehicles that operate in moderate temperatures and under moderate loads because it will provide more lubrication and reduce wear and tear. What is the difference between SAE 90 and 80W90? Helps to control heat. Is this basically the same idea as 10W30 versus straight-30? This product is formulated with quality base oils and carefully selected additives resulting in a product which will provide excellent anti-wear protection under heavy loads while also guarding against rust and corrosion even when the system is idle. // Get the form's jQuery element and hide it The W shows how the oil is stable during the winter season. Therefore, this gear oil is more efficient than the 80w90 gear oil in both hot and cold seasons. The numbers "80W-90" refer to the viscosity grades of the oil. Gear Oil Hypoid Sae 80w/90 - Moto Line | Motorex Use it in food-processing and preparation areas. Is 80W90 the same? This gear oil has exceptional flexibility and strong resistance to foams and defends parts against corrosion. Honda Exceeds api service classifications GL-5 and GL-4. Pick whatever brand you like. 80w90 Gear Oil The W shows how the oil is stable during the winter season. Thicker gear oils are more advantageous since they offer better protection than thinner oils. A Cat FD-1 SAE 50 or SAE 60 mineral oil-based product permits a 4,000-hour drain interval and an 80W-140 . These oils are called multigrades and they are designated by two numbers and the letter "W" (SAE 75W-90, SAE 80W-90, SAE 85W-140 etc. Honda GN4 motor oil is better and Honda will cover oil related failures. This lowers the driveshaft away from the bottom of the vehicle, lowering the vehicles center of gravity, and in some cases, reducing interference with the interior space of the vehicle. AdditivesAdditives are used to improve the performance of gear oils. It is recommended for use in all types of vehicles. form.getFormElem().hide(); and should be available readily at his local auto parts store. AUTOMOTIVE GEAR OIL: WHATS THE DIFFERENCE? What does 75w90 mean? Therefore, how do you decide which gear oil to use? The numbers 80W-90 refer to the viscosity grades of the oil. It presents incredible load spotting functionality where surprise loading and severe pressures are expected. However, it is good to consider the conditions under which you will be using them. SAE 90 to 250 and 20 to 50 specified at 100C. Use it when SAE 90 is specified. Is 80W90 the same? 13 Like the title says, 80w-90 or 85w-140 gear lube, which do you run and why ? Here is an 80W90 EP that is GL4 rated instead of GL5: http://performanceracingoils.com/classic-gear-oil-ep-80w90-p-50.html Either this product from Millers, or the Sta-Lube 85W90 GL4 that was linked in a post above this one, would be recommended. Bel-Ray Engine Oil & Bel-Ray Gear Oil - Differences Explained Read Also: Synthetic Oil vs. Once you know the similarities and differences between these two products (gear oils), you can select a better option and buy the best one. Also: SAE 90 is a huge range. California Transparency in Supply Chains Disclosure. The 80W-90 gear oil can be used in extreme pressure conditions and as a lubricant for non-synchronized manual transmissions in heavy duty trucks or buses. // Return false to prevent the submission handler from taking the lead to the follow up url 90W hypoid marine gear oil is still available. Viscosity is the thickness of an oil. Can I use SAE 80W-90 instead of SAE 90w? We will discuss the pros and cons of each type so that you can make an informed decision! Its lightweight gear oil. What Is 80W90 Gl-5 Gear Oil? | It Still Runs 80W-90 The numbers "80W-90" refer to the viscosity grades of the oil. Read Also: Gl4 Vs. Gl5: What Is The Difference? Conversely, some of these EP additives will erode clutch packs - power train or hydraulic oils are used in those applications. If you are unsure which oil to use, consult your vehicles owners manual or ask a qualified mechanic. * Click on the arrows to see other packaging sizes. Viscosity is the thickness of an oil. ADVANTAGE SAE 80W-90 GL-5 LIMITED-SLIP GEAR OILProduct Code612SAE Viscosity80W-90Viscosity, cSt @ 40 C16.5Viscosity, cSt @ 100 C189.0Viscosity Index904 more rows. The oil known as 80W-90 GL-5 is a lubricant for the gears in your vehicle. We use the gear oil in applications with extreme pressure. Spectro Oil Reduces drag, friction loss wear, and extends component life API GL-5 rated. 85W90 is only flowable down to -12 C, 80W90 on the other hand down to -26 C. The viscosity of gear oil is essential because it determines how well it will protect your gear. Because these gears work under high pressure, gear oils that have been specifically designed to withstand and protect against these extreme conditions are recommended to extend the life of the hypoid gearsets. It helps the drivetrain run smoothly and protects critical internal parts in a vehicles gear systems from wear and heat damage. Use it when SAE 90 is specified. 80W-90. I am having trouble locating the recommended SAE 80 EP in the USA. 80w90 is the new 90w. Gear oils have viscosities similar to engine, hydraulic, and power train oils but those oils do not have the EP (Extreme Pressure) additives found in gear oil. Designed for all shaft drive motorcycles w/o a wet clutch including BMW and Moto Guzzi. Thats why they are interchangeable in many applications. It can work in cold conditions (-20 F) and hot conditions (+410F). For reliable lubrication and low-wear synchronisation. Since it has two numbers, this oil has two viscosity grades. 80W90 gets a 9/10 rating for performance, while 75W90 gets a 7/10 rating. They prevents rust, foaming of the gear oil inside the gearbox, and wear of the gears. What is SAE 80W 90 gear oil? - ElegantQuestion.com Which you may or may not need. return false; Hypoid gear oil is an oil for the gearbox, but the ingredients are different from regular gear oil. return false; Why does my car get so dusty? Gear oils need to work in a lot of different temperatures. This 80w-90 gear oil performs better in the warm or hot climate. Now that weve looked at the basics of each type of gear oil, lets take a closer look at the pros and cons of each one. 80w90 is strengthened with lubricating and anti-wear agents, which helps manage gear wear and tear. A 90W oil is 90W hot or cold. AUTOMOTIVE GEAR OIL: WHAT'S THE DIFFERENCE? - Kendall Motor Oil MktoForms2.loadForm("//app-ab07.marketo.com", "386-ELQ-047", 2330, function (form) { Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We created this blog site in 2018 to enable us to share our knowledge with other automotive mechanics and car owners. In other words, the axis of hypoid gears are offset from one another. Is typically used as a manual gearbox oil for road vehicles and construction and agricultural machinery. The second number indicates that it takes one second for 90 milliliters to flow past an opening. 80W90 VS 75W90 Gear Oil - Comparison TABLE - Daily Parts Pro Viscosity is a measure of an oils resistance to flow. The cookie is used to store the user consent for the cookies in the category "Other. The oil becomes thinner at very low temperatures and thicker at extremely high temperatures. I went to the D&R sports place and this was the only "marine gear lube" they had. 80W90 gear oil has a higher viscosity than 75W90 gear oil, which is thicker and more resistant to flow. GEAR OIL HYPOID SAE 80W/90 is a high-pressure gear oil that can be used wherever very high levels of stress occur, such as in cardan joints, hypoid gears etc. If not there, it is available on-line at: Your email address will not be published.