|
Re: Urgent question about "Guaranteed to pass" for cars!
I'm assuming your emissions readings are borderline, hence why your mechanic is suggesting a fuel system/carbon cleaner.
He probably recommended the highest grade of fuel because the premium fuel generally has a better cleaner/additive package than the standard fuel. The hope is that the cleaner combined with a tank of premium will help to clean better than just the cleaner by itself.
I've never seen an in the tank cleaner help a car to pass an emissions test. A few borderline cases have been solved with an induction system cleaner like SeaFoam, but I wouldn't expect miracles. Be prepared to spend some money to fix your issue. Drive the car hard while the cleaner is in the tank and get the oil changed before you retest. Make sure your car has fully warmed up before retesting.
|