SR-5 GDL SAE 5W-40 Catalytic Converter Safe utilizes Group IV and Group V synthetic base oil chemistries along with Torco’s propriety additive system. SR-5 GDL SAE 5W-40recommended for use in high performance and highly modified street engines where an SAE 5W-40 or SAE 10w40 is specifies and highly recommended for Porsche engines. Commonly used in all OEM’s high performance street engines, especially in high temperature conditions. Excellent choice for modern engines equipped with catalytic converter and oxygen sensor. Provides optimized ring seal and improved horsepower over other synthetic oils in the same viscosity grade.
Meets and exceeds: API SN/SM/SL/CF and ACEA C3-12, MB 229.51/229.31/226.5, VW 505.00/502.00, BMW Long Life – 04, Renault RN0710/0700, Porsche A40.