So I bought some fuel system cleaner to clean out some carbon in my intake valves and I was wondering if its better to not fill ur tank up all the way? I'm afraid it will dilute the cleaner and make it not as effective.

Any added suggestions would be great!!

 

Whether or not your tank is full or empty, the fuel system cleaner should do it's job...the bottle should say how many gallons it treats...

 

it says it treats up to 25 gallons

 

Gas tank in the SC is 21.5 gallons so you're good using that bottle. It should do the job.