MdFormula350

iTrader: (4)

alittle more than seafoam i believe.

i paid about 24 bucks for 2 cans of GM top end cleaner at the dealership, one spray and one just fluid.

waiting2bl33d

no no. what they are talking about on the web site is that too much at one time is horible you can hydrolock your motor. but if you poor some in and then let it run for a second spit and sputter and all that good stuff. then poor some more or just slowly trickly some down it should eat the entire can i've done this for a few years on many different cars.

MikAbtII

iTrader: (4)

We buy ours at a NAPA on a discount because we do so much business through them. I'm not sure if all NAPAs carry it or not, but it's a huge can and you only need to use a little bit of it. Hopefully there's someone here that works at a GM dealer that would know the actual "street" price.