What does GL-5 mean in gear oil?

What does GL-5 mean in gear oil?

Extreme Pressure
A GL-5 grade oil has a very high rating for EP (Extreme Pressure) protection. EP gear oils contain additives that prevent metal surfaces from cold welding under the extreme pressure conditions found in situations where boundary lubrication prevails. This is normal and acceptable in all steel gears.

What is SAE 80W-90?

Product description. Delo Gear CGA SAE 80W-90 is a high performance extended drain gear oil, designed for use in heavy-duty automotive vehicle driven axles and differentials.

What is 80W90 gear oil used for?

Application. Gear Oil 80W-90 is designed for use in differentials, both hypoid and limited slip, manual gearboxes, transfer cases and transaxles in passenger cars, light commercials, 4WDs, trucks, construction, earthmoving and agricultural equipment, where this viscosity grade is required.

Can you use 80W-90 gear oil?

The “80W-90” numbers apply to oil viscosity. 80W90 is a multi-purpose, high-pressure gear lubricant for use on axles of spiral or gears and certain manual transmissions. This gear oil is for service fillets, top-offs, and refills of the API GL-4 gear lubricants and other pneumatic axles.

What is equivalent to 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.

What lubricant is used in gearboxes?

Transmission oil is similar to gear oil but used to lubricate the entire drivetrain – including the gearbox, prop shaft, clutch, differential and final drive shafts. The term transmission oil is also regularly used to describe lubricants specifically designed for automatic transmissions (known as ATF).

What is the difference between gear oil and hypoid gear oil?

The term “hypoid” has more to do with the construction of engine gears than it does with oil. Due to the higher pressure on gears as a result, the lubrication needed has to include ingredients to provide more protection for the gears. This special gear oil is designed not to deconstruct under higher pressure.

What is the GL rating on gear oil?

The base grade of a gear oil shows its underlying properties and is determined by a GL number: GL-1 to GL-3 – Basic and outdated oils for manual transmissions and axles that lack particular additives to cope with extreme pressures, friction and heat.