PETRON XCS PLUS with ValvemasterTM is a premium alternative to leaded gasoline that has the unique combination of two superior additive systems, XCS and Valvemaster TM. Only Petron XCS Plus offers Valvemaster TM, the superior lead substitute that is adopted in many international markets including the U.S.A., the U.K., New Zealand and Australia.

Petron XCS Plus Valvemaster is the unleaded gasoline that unleashes true engine power and provides the following performance benefits:
· Enhanced cleaning action that maintains the same combusting power as leaded gasoline
· Promotes better burning and reduced emissions
· Better driveability
· Improved fuel economy
· Protects against exhaust valve seat recession (VSR)