Fuchs Silkolene Pro SRG 75 is designed to improve power and maintain consistent high performance. SAE 75W Crankcase rating SAE 10W-30. This grade has a naturally high viscosity index (ensuring good low temperature performance) and excellent shear strength, as well as possessing an inherently excellent load carrying capability. PRO SRG 75 provides very superior protection and performance under the most demanding race conditions. 1.05 quart / 1L liter bottle.