Thread: seafoam

my girl has 03 gtp and was told to run seafoam, to clean injectors, better mpg etc... wanted to see any specific way to do this and if it will cause any damage to the car

Add some to the gas, run some through the brake booster, and some people add some to the crank case.

Run it all through, then replace your spark plugs and oil and you'll be done.

Ok just wanted to make sure it wouldnt damage the sc or anything

Nope, the supercharger will be fine, just don't put any seafoam in the supercharger oil.

Put 2/3 of it in gas tank then start car pull brake booster and slowly add seafoam into brake booster until car dies, wait 10-15 min then start car and let run till it stops smoking.

Ok thanks

Run it through the vacuum port going to the lim under your supercharger snout. Dont use the brake booster because it will eat your the coating on your supercharger coating.

Originally Posted by GOTIT4CHEAP16

Run it through the vacuum port going to the lim under your supercharger snout. Dont use the brake booster because it will eat your the coating on your supercharger coating.

This is false.

If that was the case I'd never have blower rotor coating.

The GenIII coating fails miserably over time regardless of methanol injection, seafoam, etc. GM coated it improperly.

GM doesn't order specs for their stuff and Eaton builds it per their request?

Therefore...GM had crappy ideas?

Originally Posted by matt5112

Since when?

Oh funny guy.

You are one.

I wouldn't put anything but air through the rotors personally. I singlehandely stripped coating off a set of rotors with TB cleaner while I had the blower off. Yeah..early on I learned the hard way.

ok time for a noob question...bear with me on this one
what is the coating for?

It seals the rotors to the case better than machining alone.

for like a air tight seal type thing

Yes. Better boost charge w/o all the heat of the previous M62's. Because you do know that 3800's came with M62's in the early to mid 90's right?

i do now ..lol
is there not a way to put a coating back on it after it gets taken off?...seems like a it would be a wear item for maintenance

It's a million dollars and we are all cheap

ohok i gotcha..thanks bill