[This review was collected as part of a promotion.] I use this in my Chevrolet Suburban with 178,000 miles. It stopped my oil consumption problems.

I went 376k miles on my 1990 gmc using only pennzoil. I bough it used at 92,000 miles. 4,000 mile oil changes.

[This review was collected as part of a promotion.] My family has used Pennzoil all our lives, The Best.

We used this on my daughter's first car. It was worth every penny & made a difference on how the car ran.

[This review was collected as part of a promotion.] I'very been using this for 2 years and never had to add oil in between changes.

Have used this in my daughters high mileage car for several years, certain it has extended the life of the car!

[This review was collected as part of a promotion.] This oil is great put it in my car that's pushing 200000 miles and haven't had a problem yet.

My brother has a 1999 Escort and he tried Penzoil and he has been putting on the miles and he keeps going and going.

Used regular penzoil until my 2004 ram 2500 got up to 125,000, at 175,000 now and not missing a beat.

My old F350 has 265k miles on a 5.8 and thanks to pennzoil she's still going