SR-1 SAE 5w40 is Catalytic Converter Safe and O2 sensor safe.
Recommended for stock， tuned or modified street， light truck and sport vehicles where and SAE 5W40 is specified. Approved for turbo and super charged applications. Provides exceptional cold temperature performance over conventional (petroleum) motor oils within the same viscosity grade.
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.

SR-1 Catalytic Converter Safe and SR-1R are a selective cross blend of highly advanced 100% synthetic base oils and proprietary additive systems aimed at increasing power， efficiency and engine protection. The performance of both SR-1 and SR-1R are uncompromised and designed using components over and above standardized passanger additive technology. Not compromised by price point， the SR-1's are purpose built specialty formulas designed to exceed the demands of high performance European， Japanese， Korean， US and other OEM's sports cars.

A combination of Generation-2 MPZ® and low friction base oils reduce frictional losses to increase horsepower and torque by as much as 3%. A premium polymer and additive system controls viscosity for long term durability， maximum engine protection and eliminate engine deposits.

Torco SR-1 and SR-1R are the ultimate in high performance synthetic motor oil technology. No other synthetic motor oil meets the performance and protection benefits of SR-1and SR-1R.