We have a 2002 Chevrolet Camaro with 123k miles. Noticed a lifter knock. We were advised to try a Gunk Motor Flush product which is added to the oil 5 minutes prior to the next oil change to see if this may resolve the problem. I am convinced it may not fix it? Will this product possibly cause new problem on such an old car?
Nov 20, 2011 at 1:46 PM