i washed down derek's entire rack and k member when i had it out, the spindles, the abs rings and sensors in the front, the trans cross member, the oil pan, p.s pump, whatever i could, the trans case, it was 1000 times nicer putting all that clean stuff back in, than it was taking it out, his oil pan gasket was leaking before he destroyed the head, so it worked out good because i cleaned everything, the bottom of his front end was caked in oil and dirt it looks so much nicer under the car now. its worth cleaning it all. bill i tried this new stuff in a gallon jug this :q:q:q:q is the bomb i will look at it and tell you exactly what its called i used to use concentrate purple power this stuff blows that garbage away!