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.

[This review was collected as part of a promotion.] I have bought this for my vehicle for the past five years my vehicle is running better since I've changed to this oil. My vehicle has 210,000 miles on it and runs of the day I bought it

I use Pennzoil high mileage formula in everything I have from new engine builds to my go karts to my daily drivers. Pennzoil will keep your engine welll lubricated!

Its what I run in my 98 and 2001 dodge 1500s change every 5,000 miles and dont use any in between the only thing I might switch to would be pennzoil high milage thank you

I started putting this in my vehicle as soon as 100,000 miles hit and have been using it since. It has really helped keep my enging going without any problems.

[This review was collected as part of a promotion.] This is all I buy used cheap oil one time and threw a rod before my next oil change wont ever use another

[This review was collected as part of a promotion.] I bought this a few weeks ago, excellent for the long commuter miles I put on my Toyota, reduced heat and werae and tear.

I have been using Pennzoil High Mileage for my '97 Camry. She now have over 360,000 miles. I still get great gas mileage and the mechanics who change my oil say the engine is in great condition. Love this product!!

I always run Pennzoil High Mileage in my truck. It helps keep my engine and seals in good shape so I can tow my R.V and Boat during the harsh summer months.

This high mileage oil rocks. It does not break down in the extreme heat. We have 2 older high mileage vehicles and this oil is pretty clean between oil changes.