Which is better GL-4 or GL-5?

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 API GL-4 mean?

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 gears operating under moderate conditions of speed and load.

Can I use GL4 instead of GL1?

Re: Gl4 vs GL1 gear lube I went through this last year working on a friends car and what I came up with was GL4 is a good replacement for GL1. Its got some higher tech stuff in it that helps with wear but not enough to cause issues with ‘yellow metals’ so its really an upgrade.

What is GL 3 gear oil?

The designation API GL-3 denotes lubricants intended for manual transmissions operating under moderate to severe conditions and spiral-bevel axles operating under mild to moderate conditions of speed and load.

What happens if I use GL5 instead of GL4?

When the GL rating is 5, it will give higher protection in extreme conditions like speed, loads, and torques. But the GL-4 will provide you with less protection compared to GL-5. It will also handle less speed and torque. In high temperatures and pressure, the GL-5 is better.

What is the difference between 75w90 and 80w90 gear oil?

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. The use of 75W-90 gear oil is recognized by OEMs as a contributor to overall fuel economy.

Can I use GL4 instead of GL5?

No, the API GL5 rating does not supercede or cover the GL4 rating. It is important to follow the gearbox or diff manufacturers recommendations and use the correct GL rating.

Can you use GL 5 gear oil instead of gl4?

Yes, you can use GL-5 gear oil instead of GL-4. The most important fact here is the API GL rating.

What does GL stand for in gear oil?

GEAR LUBRICANT
GL is short for ” GEAR LUBRICANT” API has the following GL classifications: for Gear Oils – GL-1: Oil without EP additive.

What is GL gear oil?

Chevron Gear Oil GL-1 are rust and oxidation inhibited gear oils that are recommended for many automotive and industrial equipment where the equipment suppliers recommend the use of a straight mineral oil in SAE viscosity grades 90 (ISO 220) or 140 (ISO 460).

What is API GL-5?

The designation API GL-5 denotes lubricants intended for gears, particularly hypoid gears, in axles operating under various combinations of high-speed/shock load and low-speed/high-torque conditions. The performance specifications for API GL-5 are defined in the most recent version of ASTM D7450.

What is the difference between GL-4 and GL-5?

GL-5 has roughly twice the amount of EP additives compared to GL-4, which is why it is often used in high-pressure circumstances such as in a front axle and rear axle differential. Sulphur/Phosphorus additives however have an unfavourable property: they can react aggressively towards bronze and copper.

What is the difference between OpenGL 3 and 4?

OpenGL 3.3 was made to compliment OpenGL 4.0 to incorporate as much of the functionality as they could into older hardware. Choosing between OpenGL 3 and 4, 3.3 may be a better choice sometimes. 4.1 has added GL ES 2.0 compatibility however and some nice features.