Recommended especially for gasoline, LPG, and passenger car diesel engines in highway and off highway use. SR-4 is commonly used in 4, 6 and 8 cylinder racing engines and is turbo and supercharged approved. Recommended for old and new engines. SR-4 is formulated to Torco's proprietary additive technology.
Meets and exceeds: API SN, SM, SL, CF, ILSAC GF-5 and Dexos 1 For Porsche applications, use SR-4 SAE 5W-40.