What is 75W-140 gear oil used for?

SAE 75W-140, API GL-5 is typically used as service fill rear axle oil for many passenger cars and trucks with high loads or very high horsepower. The higher viscosity base stocks help protect gears by maintaining the oil film in addition to the extreme pressure agents used to reduce metal to metal wear.

Which gear oil is thicker 75W90 or 75W140?

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.

Is 75W140 better than 75W90?

A 75W-90 will be thinner at higher oil temperatures than a 75W-140. The 75W-140 is said to have a wider viscosity range – when more accurately it would be a wider temperature range.

What kind of gear oil goes in the differential?

There are two types of differential fluid. One is mineral oil, which is a natural, crude oil-based fluid. The other is synthetic differential fluid, which is created in a lab. As with all synthetic oils, synthetic differential fluid oils can be fine-tuned for optimal performance.

What kind of oil do you use in a BMW?

Given that, suitable replacements are Amsoil Synthetic Manual Transmission Fluid (MTF) API 75W90,Mobil1, Royal Purple Max-Gear, & Redline SAE 75W90 API GL-5 synthetic gear oils. Unfortunately, there’s no way to tell which of the three (3) different differentials you have w/o looking at the numbers molded into the metal.

When to replace transmission fluid in BMW M5?

Replacement Interval: Lifetime fluid (but most recommend replacing differential fluid at the same time you replace transmission fluid, which is about 5 years or roughly 60K miles). – Differential (limited-slip E39s, such as the M5): BMW SAF-XJ API GL-5 SAE 75W-140 synthetic hypoid final-drive gear oil (aka Castrol SAF-XJ).

Which is the best gear oil for a truck?

Mobil1 is as good as any other synthetic GL-5 75w90 gear oil. You don’t. Mobil1 is as good as any other synthetic GL-5 75w90 gear oil. Click to expand… I use Mobile 1 gear oil and motor oil in my trucks,I just didn’t know about theses cars.

What kind of oil do you use in a Bentley?

The Bentleys don’t specify the weight (it’s SAE 75W-90); and the Bentleys don’t specify the quality (it’s API GL-5 hypoid gear oil). Given that, suitable replacements are Amsoil Synthetic Manual Transmission Fluid (MTF) API 75W90,Mobil1, Royal Purple Max-Gear, & Redline SAE 75W90 API GL-5 synthetic gear oils.