I recently sold a 1989 Olds 98, which had a V6 motor in it, which I had been using your Heavy Duty Oil Stabilizer in. It had 250,000+ miles on it when sold. I recently spoke the new owner recently and it now has over 300,000 miles on the same engine and is still going strong. I use Lucas Oil Treatment in all my vehicles, as well as my motor home. I would not change oil without adding it. You have good products, at a reasonable price.

Yours Truly,

Mr. Roy P.

East Kentucky