[This review was collected as part of a promotion.] I just started using this stuff for my 5.4 triton in my Ford. Before this I had a weird knocking noise I think from the hydraulic lifters. After switching the noise is either a)gone or b)so quiet im not worried about it. Great stuff.

[This review was collected as part of a promotion.] I used Pennzoil when I bought a 1974 VW Beetle...so I kept using it on my 1994 Pontiac Grand Prix...now my son NEW car...Pennzoil keep it running all these years...who knows if my youngest son would also used it in a bear future...

[This review was collected as part of a promotion.] Been using this on my old truck for a long time, it still comes out cleaner than any other oil I've used after running through the motor for 3k miles. take my advice, you won't go wrong with this oil!

I have been using this product since I started driving 15 years ago. I always buy older cars, and do my own oil changes. It definitely has helped all of my vehicles run forever. I would say all the cars I've bought have hit 300k miles and they still ran awesome when I sold them. Great product! Will use this brand as long as I can drive!

[This review was collected as part of a promotion.] I've used a few different brand of High Mileage oil over the past few years but the Pennzoil High Mileage seems to just out preform all others I have tried. When I drop the drain plug around 3,000 miles to change, it still almost golden. And on top of that the truck really does run quieter and smoother. Hats off to the folks that developed this stuff.

[This review was collected as part of a promotion.] I have been using this in my 01 Camry with 211000 miles and the engine runs great ! It is tempting sometimes to use cheaper oil, but this stuff I believe is extending the life of my engine and it runs the same as it did 10yrs ago!

[This review was collected as part of a promotion.] This is the only oil I use in my old 98 dodge it's got 170000 miles now and is still a powerhouse now that Iv got my new truck (2004 f150) well new to me nothing's changed still use it every oil change

Pennzoil has been the only oil I have ever used in my trucks, and our family cars for the past 58 years of driving. My second car was a 1962 Pontiac with 385,500 miles on it, and my 1995 F250 Ford that I drive now has, 288,950 and is still going strong! So thanks for making a very good product.

[This review was collected as part of a promotion.] My car has over 170k miles and I'm cheap so I refuse to buy a new one until it kicks the old rust bucket. I've been using this oil for the past few years and will continue to use it until I have a car with low mileage. Vehicle has no noticeable engine/oil related problems so if it ain't broke, don't fix it.

my car is approaching the 20 year mark so a few years ago i started to switch to the pennzoil high mileage oil in order to save my engine a little bit from the wear and tear from me driving. before I made the switch my car would make a griding noise at points coming from somewhere in the engine. nothing too serious sounding, but since i made the switch it has been nothing but smooth rides for me and my Pontiac