What Is The Best Gear Oil? - Fixanswer - Get your knowledge fix!

Special Features.

PARTHAN SL

is a new generation fully synthetic extreme pressure gear lubricant specifically developed for lubricating the heavily-loaded gearboxes and rolling element bearings of industrial gear boxes. PARTHAN SL shows superior performance in the FAG FE-8 Test.

Is synthetic gear oil better than regular gear oil?

Base mineral oils often perform better than synthetics

at lower temperatures, having a greater film strength by virtue of a higher pressure-viscosity coefficient. On the other hand, synthetic oils are desirable in high temperature applications due to their increased ability to resist oxidation and thermal degradation.

Is Thicker gear oil better?

Is Thicker gear oil better?

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.

What’s 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.

What are the disadvantages of synthetic oil?

However, there are some disadvantages of synthetic oil. Its disadvantages include

being more expensive than conventional oil

, it limits the breaking in of the new parts of the vehicle, and it is not compatible with older car models and vehicles with rotary engines.

Can you use GL-5 gear oil instead of gl4?

The main difference between GL-4 and GL-5 gear oils is the amount of EP additives. … GL-4 is suitable for

hypoid gear service when

they are under severe service but are without shock loading. GL-5 is suitable for hypoid gear service under severe service and shock loads and not for use in a gearbox.

What does GL-4 mean in gear oil?

GL-4. Active. The designation API GL-4 denotes

lubricants intended for axles with spiral bevel gears operating under moderate to severe conditions

of speed and load or axles with hypoid (see note)gears operating under moderate speeds and loads.

How do I choose gear oil?

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

What is the difference between 75 90 and 75W-140 gear oil?

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.

What is the difference between 75W-90 and 80W-90 gear oil?

SAE 80W-90 gear oils use mineral oil as a base, which means more frequent oil changes leading to increased maintenance time. … 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 I use 80W90 instead of SAE 80?

Yes it is the same… close enough anyway. SAE 90 gear oil is equivalent to

50wt engine oil

(SAE 80 = 30wt), so you could always dump that in instead if you want.

Whats thicker 75w90 or 80w90?

80w90 is denser than 75w90

. Denser oils like 80w90 can work well in high temperatures, but on the other hand, thinner oils like 75w90 are good overall, and they provide adequate gear protection.

When should I use 140 gear oil?

Application. Gear Oil 140 is designed for use in

differentials

, both hypoid and limited slip, in passenger cars, light commercials, 4WDs, trucks, construction, earth moving and agricultural equipment where such a viscosity grade is required.

Can you mix 75w90 and 80w90?

You are fine to mix the two I’d think. No weird additives, just basic Castrol 75w90.

Can you go back to regular oil after using synthetic?

You can’t switch back to conventional oil

: Once you switch to synthetic, you are not bound to it forever. You can switch back to conventional oil if you choose to do so and your vehicle manufacturer doesn’t recommend otherwise.