Drive a 2003 WRX with about 9000 miles on it.
Looking for reccomendations on:
Periodically adding cleaner to gasoline. What frequency ( before every oil change) ?
Any particular brand cleaners to avoid ( incompatibility with fuel system, etc)?
Can it potentially screw up turbo, engine sensors or ECU?
Is it worth doing to keep my WRX running strong?
Thanks for your help.
SubbieG