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

Have been using for years. As well as recommended to my customers looking to help extend the life of their vehicles.

[This review was collected as part of a promotion.] I us in my wife's suv, It's got over 150,00 miles. Pennzoil high mileage keeps it running smooth.

[This review was collected as part of a promotion.] Great performance and it works so well in my vehicle.

[This review was collected as part of a promotion.] I needed an oil change so I bought this my car likes and runs cleaner

[This review was collected as part of a promotion.] I use this in my chevy with 240,000 miles. Works great....

Got an ol chev Silverado wit close to 235,000 miles on it. I use Pennzoil high mileage EVERY TIME, and she aint let me down yet!

[This review was collected as part of a promotion.] Bought this when my car tales 5/20. Got a lot of mileage on it.

[This review was collected as part of a promotion.] ive used this from time to time and i really like it and seems to work very good

[This review was collected as part of a promotion.] I USE THIS FROM MY OLD TRUCK TO MY MUSTANG.CANT BEAT IT BEST OIL I EVER BOUGHT