Evenexchange

So I'm kind of a clean freak with my engine... I have 10k on my motor, and I run lucas upper cylinder almost every full-up in my car. Not sure why.

So when considering seafoam... I always get weird vibes about it... is it safe for our motors? I have a basically stock car, with minor engine mods. Where is the most beneficial place to use it? The crankcase? Gas tank? Directly on the intake?

Does anyone have success/disaster stories?

2011Black5.0

I used it on my 05 v6 that had 50,000 miles on it and I felt there was actually a little difference in performance. I just do the 2/3 in the gas tank and 1/3 in the brake booster. I would recommed it, I do it every 15,000 miles now just to keep it all clean. If you need any help on how to do the brake booster just let me know

99BlackPonyGT

DO NOT put it in your crankcase

03BottleFedGT

seafoam works really well. stop using lucas every fill up every oil change is just fine to much can harm your seals

2011Black5.0

agreed

DreamerGT

I put it in my crankcase and ran the car 4 months before I changed the oil. Everything is fine, the oil drained out nice and dark too

ChalknCover

I would recommend seafoam for sure, dump it in according to the directions. I would only use it in the gas tank though. I use cleaners about every 5k miles.

Evenexchange

Why shouldn't I put it in the crankcase? Where do I put it into the brake booster?

2011Black5.0

the big black vaccum line that comes out the front

JC316

CAREFULLY! Do it slow or you can hydrolock the motor. I will put it in the crankcase to quiet lifters.