Can you add too much Sea Foam IC5 fuel injector in my engine? [SOLVED]

Is too much Sea Foam Fuel Injector Cleaner bad for the car? I added a whole bottle to about 5 gallons of gas – will that make the engine not run properly? The car is a 2000 Nissan Maxima V6.


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Jim D.
4 years ago

Hi Joe. You can safely add a full bottle of IC5 Fuel Injector Cleaner to 5 gallons of gasoline. There are not any ingredients in IC5 that could cause harm to a fuel system. Adding to 5 gallons (or even less fuel…) will work great!