MotorMonkey53

Add 1 pint to 1 quart of Dexron III/IV to engine oil to replace the same volume of engine oil at oil change. The ATF is a lubricant, but a very high detergent lubricant and it will disolve the varnish on the components of the hydraulic lifters allowing proper pump-up of the lifters and eliminate most if not all ticking of the lifters. It also improves oil flow to the top of the cylinder heads to improve lubrication of the valve stems and seals. This has worked for me in EVERY car I have owned, foreign and domestic, for the past 50 years. It will not harm the engine. It has not harmed any of mine. Also, after the lifter noise has been fixed, exchange 1 quart of oil for 1 quart of Rislone Oil Additive (another high detergent engine additive to prevent varnishing of engine parts) with EVERY routine oil change. Also, try to not run too far past oil change recommended mileage. There is NO reason you cannot attain 250K+ miles on your automobile if properly maintained.