I've been using Pennzoil brand oil for over 40 yrs. LOVE the high milage oil! Started using it when it came out.

[This review was collected as part of a promotion.] Use this in all my high mileage Chevy's . I wont use anything less

This oil comes out clean as the day it was put in, even if I stretch the milage past when it should have been changed.

We've been using the high mileage since our Chevy turned 200k/and she's been going strong for 40k. The beat product to extend the life of your motor.

[This review was collected as part of a promotion.] Use it on my wife's car! Good to know her car's engine is protected being a high mileage vehicle!

271,000 miles and it just keeps going! Original engine still internal very clean. Never opened up, but dipstick looks like new. Never babied.

I bought this about three months ago and my car runs great now that I'm using it! I'm so happy I bought it!

[This review was collected as part of a promotion.] I bought it for my Ford and I drive a lot to and from work it is an amazing product

I use this brand and had hole in oil pan,drove my car for two days before I knew anything was wrong,kept motor alive!!

[This review was collected as part of a promotion.] I've always used Pennzoil in all my vehicles. Always been dependable.