Mobil Synthetic Gear Oil 75W-90 is a fully synthetic gear lubricant formulated from synthetic base oils and an advanced additive system. It is designed for use in many railway gearboxes and provides excellent load-carrying capability where extreme pressures and shock loading are expected.
What's the difference between 75W-90 and 80W-90 gear oil?
SAE 75W-90 maintains a more consistent thickness, or viscosity, across a wide temperature range. It's thicker when exposed to high heat and thinner under colder, wintry conditions than 80W-90. The use of 75W-90 gear oil is recognized by OEMs as a contributor to overall fuel economy.Jun 11, 2018
Is 90 weight gear oil the same as hydraulic fluid?
The average gear oil 90w, is quite a bit thicker than the average hydraulic oil 20w. Higher viscosity creates a “thicker” fluid. Thickness or thinness of both oils is same, if it relates to their respective densities ( about 0.85 times weight of Water).
What is 80 W 90 gear oil?
Lubricant. The oil known as 80W-90 GL-5 is a lubricant for the gears in your vehicle. It is used in automatic and manual transmissions, and assists the gears in shifting smoothly.
What weight is SAE 90 oil?
SAE 90 gear oil is equivalent to 50wt engine oil (SAE 80 = 30wt), so you could always dump that in instead if you want. 15W40 diesel oil is close enough to dump in there. Please don't use anything but gear oil, like 80W-90 in a gearbox or axle that specifies it.
Is 80W-90 the same as 90 weight gear oil?
It's important to know the difference between 75W90 and 80w90 gear oil because they're not interchangeable. ... For example, if you were going to use 80w90 gear oil on an axle operating at high temperature (over 212 degrees Fahrenheit), the fluid would be too thin and could cause the axle to wear out prematurely.Nov 26, 2021
What is 90 weight gear oil used for?
The 75W-90 gear oil is used under extreme pressure conditions and is recommended for limited-slip differentials and for use in colder climates. Used in heavy duty manual transmissions, final drives and axles, high temperatures will not effect the heavy film left by this oil.
What type of oil is SAE 90?
Super S GL-1 Gear Oil SAE 90 is a straight mineral based lubricant that is used in automotive manual transmission and gear applications. GL-1 rated gears oils have no extreme pressure additivesextreme pressure additivesExtreme pressure additives, or EP additives, are additives for lubricants with a role to decrease wear of the parts of the gears exposed to very high pressures. They are also added to cutting fluids for machining of metals. ... Unlike antiwear additives, extreme pressure additives are rarely used in motor oils.https://en.wikipedia.org › wiki › Extreme_pressure_additiveExtreme pressure additive - Wikipedia and can be considered non-detergent type lubricants.
What is the meaning of SAE 90?
SAE 90 meaning SAE 90 refers to the SAE class according to which the transmission oil has been classified. This classification is made by the Society of Automotive Engineers. These are monograde oils which are mainly used at temperatures above freezing point.
What's better 75w90 or 75W140?
A 75W-90 will be thinner at higher oil temperatures than a 75W-140. Both are the same thickness at lower oil temperatures. The 75W-140 is said to have a wider viscosity range - when more accurately it would be a wider temperature range.May 25, 2007
What viscosity gear oil should I use?
As a general rule high viscosity oils are best for low speed, loaded gears with a rough surface. Higher viscosity provides a thicker film, higher wear resistance, and less deformation of the gears as time goes on. Low viscosity oils, on the other hand, are best for high speed systems with lower load.
Which oil is thicker 75w90 or 75W140?
The main asymmetry between 75w90 and 75w140 is that at operating temperature, the 75W140 will be significantly thicker than the 75w90. However, at room temperature, they both will be of similar density.Nov 2, 2021