[This review was collected as part of a promotion.] I use this in my fleet of service vans. They all have over 200,000 miles on them. This stuff works wonderful in them. I keep great oil pressure and engines are clean. Love this stuff.

[This review was collected as part of a promotion.] I change my oil every 3 months (approx. 3000 miles) and use penzoil. My truck has over 260,000 miles and is still running strong.

[This review was collected as part of a promotion.] My hubby only uses Pennzoil to maintain his high mileage truck. We depend on our truck as we pull a fifth wheel across Michigan and need a good running truck. Sweepstakes entry

I've been using this product in my Ford truck since it rolled to 75,000 miles. It's getting ready to hit 200,000 miles. If it ever does wear out maybe #TEAMPENSKE will build me a 5.0 Coyote engine !!! Hint hint...

[This review was collected as part of a promotion.] I have been using this high mileage oil in my ford focus since it hit 100000 miles. It is now over 259000 miles

I have a 1997 ram 1500 pickup with over 190,000 miles on it. It run great and I've never had to put a drop of oil in it between oil changes about every 4,000 miles.

[This review was collected as part of a promotion.] I drive a full size suv and the oil made a noticeable difference within a month of me doing my oil change

[This review was collected as part of a promotion.] I have been using this product since my truck hit 75000 miles. I now have 123000 miles. I get my oil changed every 3000 miles and my truck has run great using this product.

[This review was collected as part of a promotion.] My car is a 2000 and it has over 300,000 miles on it and counting because this is the only Oil/product we use. Every 3,000 miles faithfully. Always recommend this to other's.

[This review was collected as part of a promotion.] During some engine work was pleased how clean the insides were. There wasn't the sludge build up I have had in other engines.