This product makes me feel like im protecting my engine so that it will last past 200000 miles.

Our 94 Ranger runs great on it & doesn't use a drop of oil after 350,000 miles

I use this oil in my 1997 chevy camaro Every time I change it my car had never ran so smooth

ive ran this oil for 200,000 and still has perfect compress

I only use Pennzole high mileage when changing my oil.In my opinion its the best oil on the market

I drive about 3000 to 6000 miles a month and i use this in all my vehicles after 100,000 miles.

Have been using this for awhile now, seems to help the old Mustang engine

I've used this for a while and am very happy with it.

I use high mileage in my 94 truck I love it have never had a problem with it

Use this in my '79 ford truck all the time and she still runs like new! Great product!