[This review was collected as part of a promotion.] I had this oil installed into my vehicle with an oil leak and 200k + miles on it. I like it because it has burned a whole lot less so I don't have to top off as often.

My dad had bought a 97 chevy over 12 years ago,all he used in it was penzoil 10-W30,it has seen 338,000+ miles and the motor runs like a racehorse,havent thrown a rod or had a tick in it ever,keep up the good work pennzoil!

[This review was collected as part of a promotion.] Bought a 2006 van to take on race trips, my Daddy suggested using this oil. Keeps the Van running great, wouldn't use anything ended.

[This review was collected as part of a promotion.] I use high mileage penzoil in all my cars. It has great performance, and is way ahead of its time. Its the best oil on the market to date.

Have used this in my 1975 Firebird for years and it keeps on running. Planning on doing an engine swap soon but will pick another quality Pennzoil product once that happens.

i have been using penzoil since i could open a hood.i use it in all my trucks,like my father did .it extends the life of my 36 year old ford motor ,i never have a concern about it not starting thanks to penzoil

[This review was collected as part of a promotion.] I don't know what it is about this stuff but it works great in my truck with 240,000miles. I find it reasonably priced and can find it anywhere.

[This review was collected as part of a promotion.] I use this oil in my 88 Chevy S-10, because it has high mileage, and this is a reasonably priced, high quality product, that I know I can depend on to keep my engine in good working order.

I have a 1997 ram 1500 pickup with over 190,000 miles on it. It run great and I've never had to put a drop of oil in it between oil changes about every 4,000 miles.

Great product that truly performs well in our old vehicles that are over 20 years old. Wouldn't buy any other brand and am thankful for the quality products such as Pennzoil High Mileage Vehicle.