What oil do I use for my differential?

Use the highest-quality gear oil you can afford to fill the differential. The weight and capacity will be listed in your owner’s manual; your differential will usually hold as much as 3 quarts. Be sure to read that manual, though, because some limited-slip differentials require a secondary friction-modifying additive.

Is axle oil and diff oil the same?

Every front or rear axle is filled with a special oil (also called differential fluid, or gear oil) that takes care of this. The differential fluid lubricates the gears, bearings and other internal parts, and provides cooling to these components as well.

What do numbers on gear oil mean?

Monograde gear oils are designated by one number (70, 90, 140, 250, etc.). The number indicates a level of the oil viscosity at a particular temperature. The higher the grade number, the higher the oil viscosity. Viscosity of gear oils designated with a number only without the letter “W” (SAE 80, SAE 90, SAE 140 etc.)

How do I choose gear oil?

How do you select a gearbox oil?

1. Gearbox type: dimensions, the metal from which the teeth are made, sliding properties and gear ratio, open or closed casing, etc.
2. Operating conditions: depending on the load, vibration and shock levels, anti-wear and extreme pressure properties determine the choice of lubricant.

Which gear oil is best?

Best Sellers in Gear Oils

1. #1. Quicksilver 802851Q02 High Performance SAE 90 Gear Lube.
2. #2. Lucas Oil LUC10043 Oil SAE 80W-90 Heavy Duty Gear Oil – 1 Quart.
3. #3. Valvoline SynPower SAE 75W-140 Full Synthetic Gear Oil 1 GA.
4. #4. Valvoline High Performance SAE 80W-90 Gear Oil 1 GA.
5. #5.
6. #6.
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8. #8.

Do I have a limited slip differential?

The easiest way to tell if you have an open differential is to jack up the car and spin one of the rear tires. If the other wheel spins in the opposite direction, you have an open differential. If it spins in the same direction, you have a limited slip differential, or LSD.

Can you use limited slip oil in a non limited slip diff?

All differentials use gears, bearings and shims. Limited-slip differentials have additional clutch packs. Since there is nothing in any differential that is not in a limited-slip differential, there should be no harm in using a friction modifier in a non-limited-slip differential, although there is no need for it.

What’s the ideal operating temp for diff oil?

Nearly all non-M models use an open differential and rely on traction control to limit wheel spin. Vintage models and M cars use some form of limited-slip – clutch-type, viscous, or Torsen designs. The ideal operating temp for diff oil is 150°F.

What are the specifications for Ford engine oil?

The specification is also used to define engine oils for servicing Ford engines where applicable. The oil shall meet all the requirements of the ILSAC GF-2 and GF-3 specification, the ACEA A1-98 and B1-98 specification and additional Ford requirements.

Where can I find the specifications for operating fluids?

MB BeVo-ONLINE always shows the latest Specifications for Operating Fluids and the relevant approvals for products on the market. You can find the Specifications for Operating Fluids relevant to your vehicle/ major assembly in the online Owner’s Manual. In the event of questions, please contact your nearest Mercedes-Benz Service Centre.

What kind of oil does a BMW rear differential use?

The rear differential on BMWs is a little more complicated. If your BMW is equipped with an open differential, you can use the same 75W-90 fluid that is used in the front differential. However, if you drive an M3 or have a limited-slip differential (LSD), this requires 75W-140 oil.