I have been using this oil since I passed 100,000 milles. No problems, I hope that it takes me to 500,000 miles. HALF-WAY THERE!!!

[This review was collected as part of a promotion.] Used it in last car and vehicle was still going strong after 215 thousand miles!!

I use this in my 1996 Jeep Cherokee with over 140K and it still runs great! Pennzoil High Mileage is a reliable product.

I've used pennzoil in my 07 f-150 change to high milage at 100000, now have 175000 couldn't be happier

[This review was collected as part of a promotion.] have 245,000 miles on truck,all of them with Pennzoil H.M.. 60 lbs of oil pressure!!

I've ran it in both of my vehicles with super high mileage, and has increased fuel mileage and performance, very happy with it!

[This review was collected as part of a promotion.] I have been using this high mileage oil for awhile now and am very happy with the product!!

[This review was collected as part of a promotion.] Use it on my 1999 ford f150 with 325,00 miles hard miles. Oil never breaks down

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

Penzoil is the only oil I use in my 2007 Dodge Ram, and in all my lawnmower equipment. Makes everything run smooth. Great products.