Thickest Gear Oil Grade

Guys please can anybody tell which is the thickest gear oil available in the market.

Thickest gear oil grade. The sae classification sae j300 has proven 11 viscosity grades. The sae grading system indicates oil viscosity in simple numbers ranging from the thin oil 10 to the very thick oil 140 or above. Brother usually gear oils for cars are very thin and normally available in new. Gear oil meant for high ambient temperatures is designated by a single number for instance sae 80 or sae 250.

There are several additives that make the oil thicker to reduce oil consumption in an engine and i wondered if something similar might reduce noise and wear in drivetrain components or if there is a better thicker oil that will still do the same job as the 90 grade recommended but may leak out less not heat up as much and not vapourise out of an overdrive. This oil is made for antique cars with diesel engines that burn oil excessively. These oils possess a very high level of extreme pressure additives. 60 50 40 30 20 25w.

The thickest motor oil readily available on the market is 40w70. They re primarily used with hypoid gears and other extremely loaded systems. Actually its for my motorcycle chain oiling and i want to know about the thickest one available so that i can experiment with it. Choosing an appropriate viscosity grade is usually as simple as finding the recommendation in a component s maintenance manual.

The majority of transmissions use this kind of oil. Light grade oil is ideal for small fast polished gears under a light load. Monograde gear oil with a w after its number sae 70w sae 80w has a viscosity rating measured at 0 degrees fahrenheit and is. Viscosity of these oils is measured at 212 degrees fahrenheit.

The eleven viscosity grades are. Higher numbers indicate more viscous oil. 20w 15w 10w 5w and 0w. Base oil type the type of base oil used should be determined by the operating conditions gear type and other factors.

In josh s case his 15w 50 racing oil may be too thick to flow quickly enough to fill the spaces between the crank journals and main bearings while the engine is running. Single grade or straight weight oil. A single grade oil does not contain viscosity modifier or polymeric viscosity index improver. Heavier weight or higher grade oil is more viscous and therefore thicker as it flows between the gears.