Can I use EP 80W/90 oil instead of EP90 oil?

An SAE 90 gearbox oil is roughly the same viscosity as an SAE 50 engine oil. Most manufacturers now offer EP80W/90 oils in place of both EP80 and EP90. In viscosity terms, this is analagous to using a 20W/50 engine oil in the sump, and will do no harm.

Can I use 80W90 instead of EP90?

A GL5 contains probably 25% EP additive to protect the gears. If its asking for SAE 90, an SAE 80w/90 will be fine as it is a 90 at operating temperature, so just giving a wider temperature range to work from. The 80 side will benefit you when putting the machine in gear when it’s cold.

Is 80W-90 the same as 10W 40?

The most common mistake is the belief that the viscosity of SAE 80W gear oil is much thicker than the viscosity of SAE 10W-40 motor oil. This is absolutely incorrect!

Can I use 80W90 instead of 85W90?

85W90 is only flowable down to -12 °C, 80W90 on the other hand down to -26 °C. If your vehicle is regularly exposed to very cold temperatures, we recommend 80W90 transmission oil, otherwise 85W90 can also be filled in. The performance parameters of the oils of both SAE classes are identical in many respects.

Can I use 80W90 instead of 75w80?

It is not alright. All of the 75W-80 products are formulated without sulfur/phosphorous additives. And most of the traditional products (80W-90, and some 75W-90 oils, etc.) use sulfur/phosphorous which will damage the components in your transmission.

Can you use 80W-90 gear oil?

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. This gear oil is recommended for conventional and limited slip differentials.

Which is thicker 75w90 or 80w90?

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.

Can you mix different gear oils?

Mineral oils, PAOs and esters may all be mixed together. Only polyglycol type synthetic oils (PG or PAG) may not be mixed with the other lubricant types. They can react together and form gum gels in the casings. Furthermore, they can sometimes be incompatible and immiscible with other polyglycols.

What happens if you use the wrong differential fluid?

Using the wrong fluid can cause poor lubrication, overheating, and possibly transmission failure. A mechanic might not be able to reverse the damage, even by flushing the transmission.

What happens if you mix synthetic gear oil with regular gear oil?

Yes. There is no danger mixing synthetic and conventional motor oil. However, conventional oil will detract from the superior performance of synthetic oil and reduce its benefits.

What happens when you mix gear oil with engine oil?

What Happens When You Mix Gear Oil With Engine Oil? To achieve the desired grade, grease thickeners are first made, and then oil is added. As a result, mixing oil and grease results in a lower consistency grade since the base oil is changed to the thickener.

Can I use gear oil as engine oil?

Gear oil and motor oil are not the same thing, and they are not interchangeable. Gear oil is specially formulated for use on gears.

What oil can I use for gear oil?

Manual Transmission Fluid (MTF)

An obvious substitute for the American Petroleum Industry Gear Lubricant (API GL-4 or GL-5) typically used in your vehicle is an appropriate MTF for your make and model.