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

[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.] Use it and it always seems my truck with 250,xxx miles does better with it running in it.

[This review was collected as part of a promotion.] This has been used in my Miata and I have over 200,000 miles on it.

[This review was collected as part of a promotion.] This product has helped us get to 256,000 miles and going strong on our 2001 Ford F-150. Awesome.

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

Been using this in my Subaru with over 220k miles on it and still going strong. Stays fairly clean even after 4-5k miles between changes.

I have a 2000 Chrysler Town and Country with 240,000 miles. I use this to help get a little more from it

I use the high mileage in my jeep Cherokee and got 200,000 miles on her and she runs like a champ!!!

I have used the high mikeage formula for a while and they are still running. Gives me some peace of mind.