JSAE. 20030260. SAE. 2003-01-1992. Development. of. a. Fuel. Efficient. Multipurpose. 75W-90. Gear. Lubricant. Kay. K. ... ever smaller increments of fuel economy from automotive designs for these larger vehicles, the focus has tumed increasingly to lubricants. ... and the four ball test (DlN 51350 part 1) to minimize losses due to friction and load for formulation of 75W-90 manual transmission fluids.
|Title||:||New Lubricants, Additive Developments, and Testing|