degreaser
Do NOT use Castrol Super Clean on your engine! It will EAT the paint on your inner fenders and strut towers, not to mention the STB itself, all other painted parts, and your fans and belts will sling it onto the fenders.
I use gunk foamy engine brite. Follow the directions on the can. Use two cans with a rinse and dry in between if necessary.
I use gunk foamy engine brite. Follow the directions on the can. Use two cans with a rinse and dry in between if necessary.
Senior Member
Certified GM nut
Joined: Oct 2006
Posts: 2,028
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From: burb of detroit. 2 miles north of 8 mile Rd.

i only let it sit for a couple minutes, then risne with my power washer. it didn't harm any paint, or belt.
is that if it sits for a long period of time?
is that if it sits for a long period of time?
It takes very little time to etch the paint. Especially if there'* no clear on top, which there isn't in the engine bay.
There are hundreds of other options besides a product known to damage paint (which is why I use it to strip paint off parts).
Remember my hood?
And my hood vents?
http://www.bonnevilleclub.com/forum/...ic.php?t=91199
Don't use CSC anywhere near paint you care about. Even under the hood.
There are hundreds of other options besides a product known to damage paint (which is why I use it to strip paint off parts).
Remember my hood?
And my hood vents?
http://www.bonnevilleclub.com/forum/...ic.php?t=91199
Don't use CSC anywhere near paint you care about. Even under the hood.


