is the "induction service" at the dealer the only way to clean the injectors for the 3.5L? or can i run a bottle of seafoam thru the gas tank?
03 3.5L pushin 60k miles.

 

Why don't use just use Chevron Techron, LubeControl FP60, Gumout Regane or BG44k?

I wouldn't run Seafoam through anything other than a brake booster cable to clean out the intake manifold and I have never done that.

 

agreed...i would reserve seafoam for the intake manifold...auto-rx for the crankcase...and chevron, gumout regane, or redline si-1 for the fuel tank...

 

gumout worked well for me

 

we only run the premium grade chevron w/techron thru the car... whens it best to dump one of the mentioned above into the gas tank? full, half, near empty? DOes it even matter?

 

Don't use the cheap Gumout (which is made for carburators). They supposedly have a more expensive cleaner that works well for fuel injection.

You should put a bottle in your fuel tank just before filling up (good to be down to about a half tank) and the gasoline pumped into your tank will mix the cleaner into the gasoline so you don't get a slug of cleaner in the fuel system. Be certain to get enough to give a proper treatment rate for your gas tank when full (probably 20 gallons).

I prefer the Chevron Techron, but there are supposed to be others that are as good. I can't recommend anything but Techron.

 

Ok, ill pick up a bottle of the Techron stuff and give it a shot. Thanks.