[This review was collected as part of a promotion.] great new, old,high mile ,less sludge and reduce leaks

I have been using it every since i have been able to buy cars myself and i wouldn't use anything but pennzoil in any vehicle that i own

[This review was collected as part of a promotion.] I feel that i trust this oil, for some reason i feel my truck runs better with it

Tried for first time about a year ago... Liked it so much use it on my wife's car as well!! Cars are running great! Highly recommend!!

So happy with my blazer's engine performance after switching to Pennzoil High Mileage oil at my last oil change.

[This review was collected as part of a promotion.] Makes the car run at top performance and I love it

I use Pennzoil High Mileage for my 200,000 mile GMC Yukon XL Denali, and the engine continues to run great!

I have an older car with high mileage, this oil seems to last and help my car maintain quality performance

Love using this oil,my truck has 175,000 miles. This oil makes my truck run great and wouldn't even think of changing brands.

I run it in my race car. I performs great! The viscosity is exactly what I need and it lasts over the course of several races!