How i made my lifters stop TAPPING!
my lifters were tapping so bad it was setting off my knock sensor. i tried several ways to make it stop, including running straight 50 wieght oil with Lucas Oil Stabalizer added to it.. BAD IDEA.. anyway.. i bought a product called Gunk Motor Flush, and used it according to directions. i then changed the oil and filter (quaker state synthetic 10w30, and a pure one filter) and drove the car. it is quieter than it has ever been, and i havent got any phantom knock since. its only been about 30 miles of driving but its already a VAST improvement. Also, i accidentally spilled some of the motor flush on my valve cover, and when i wiped it with a rag it gave the valve cover a polished look..real shiny...so i know it did some good on the inside of the engine, just be careful if you have a painted valve cover..as i think it will definitely strip the paint. Just an FYI to everyone with nasty lifter tapping!