Is gl5 better than gl4?
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.
What is difference between gl4 and gl5?
Isn't the main difference between GL4 and GL5 for enhanced protection of hypoid gears? Hypoid gears generate much more pressure between the gear teeth than other gear designs. Bearings don't usually have anywhere near the same pressures. That is correct.
What is the difference between 75w90 and 80w90 gear oil?
An oil's use can be determined by the SAE number or grade it is assigned. Numbers of 60 and higher indicate gear oil while lower numbers indicate engine oil. This means 75W-90 and 80W-90 are both gear oil.
What does 75w90 mean?
The 75W90 provides superior lubricity which means less wear caused by friction and improved gear protection at extreme temperatures. The 75W90 provides : ▪ Outstanding performance at both low and high temperatures : high viscosity index of 158. ▪ Excellent low temperature properties : pour point of -51oC.
Is GL 5 Synthetic?
Mobil Synthetic Gear Oil 75W-90 is a fully synthetic gear lubricant formulated from synthetic base oils and an advanced additive system. … Mobil Synthetic Gear Oil 75W-90 meets the API GL-5 performance level.
What does GL 5 oil mean?
DESCRIPTION: GL-5 Heavy Duty Gear Oil is an extreme pressure, multi-purpose, automotive gear lubricant. Excellent performance for differentials operating under high speed, low torque; and low speed, high torque conditions. It meets SAE, military and commercial specs.
Can I use 75w90 instead of 75w85?
Yes, a 75W90 (or heavier) can be used in place of Nissan's recommended 75W85 .
What does GL stand for in oil?
API stands for Americam Petroleum Industry and GL stands for Gear Lubricant, see below for their definitions: API GL-1 Straight mineral oil. API GL-2 Mild EP for worm gear oils. API GL-3 Mild EP for spur and spiral bevel gears in axles and transmissions.
What does 85w 140 mean?
SAE 90 gear oil in reply to BigTone, 06-02-2012 15:59:55. The 85W-140 is like the newer motor oils and act pretty much the same way as they do as in when cold it acts like a 85W oil and when hot a 140W oil so it helps some in theory that is.
What is 80w 90 gear oil?
The numbers "80W-90" refer to the viscosity grades of the oil. Since it has two numbers, this oil has two viscosity grades. The 'W' means winter. The number "80" — in this case — signifies that the oil is designed to work well in lower temperatures.
What is hypoid oil?
A hypoid gear oil is a lubricant that is designed to operate effectively with hypoid gear designs. Most gearboxes and differentials use hypoid gear designs and the lubricant must contain EP (extreme pressure) additives to prevent wear between the sliding surfaces of a hypoid gear mesh.
What is gear oil used for?
Gear oil is designed to protect vital components, including the gears and bearings in the drive axles and differentials, transmissions, industrial gear boxes and power take-off units. Gear oil generally has a higher viscosity for easier distribution and protection through the entire gear set.
What is lubricating oil used for?
Lubricating oil, sometimes simply called lubricant/lube, is a class of oils used to reduce the friction, heat, and wear between mechanical components that are in contact with each other. Lubricating oil is used in motorized vehicles, where it is known specifically as motor oil and transmission fluid.
How much oil does a Muncie 4 speed hold?
The Muncie 4-speed transmission will take about three pints, or 1 1/2 quarts of oil.
What is a hypoid differential?
A hypoid is a type of spiral bevel gear whose axis does not intersect with the axis of the meshing gear. … In hypoid gear design, the pinion and gear are practically always of opposite hand, and the spiral angle of the pinion is usually larger than that of the gear.