Put this in my truck with 76000 miles and my car with 79000 miles and it sounds and runs without any problems

I've always bought Pennzoil products - they are a tested brand and great company that puts out great products!

[This review was collected as part of a promotion.] I use it in my truck with 330000 plus miles hopeing to get another 300000 miles

[This review was collected as part of a promotion.] I've been using this for a little while now and I am impressed!

[This review was collected as part of a promotion.] I like that it keeps the oil pressure up. My truck burns oil, but this product reduces that.

I was a Castrol man myself but my coworker got me to try this and love it i will never switch to anything else again

Bought a month or so ago and has seemingly helped my '05 higher mileage vehicle last longer and run more efficiently.

[This review was collected as part of a promotion.] great new, old,high mile ,less sludge and reduce leaks

[This review was collected as part of a promotion.] We put alot of miles on our truck every week and this oil holds up great between changes.

[This review was collected as part of a promotion.] Use this in both my trucks. If you want an oil that is best - ditch the rest!