Hello, I would like to add a fuel injector cleaner to my Lincoln. Would you give the go-ahead to Castle Injector Sting? Also gasoline is required at 92 octane. Will it harm the engine if I use 89 since the price of gas is rising fast again. Thanks, Mauro
Fuel injector cleaner keeps dirt and other small deposits from clogging up your fuel injectors. Use as the instructions say. If the car has been sitting I would use it to help get rid of any water vapors from sitting.