[This review was collected as part of a promotion.] I always use high mile Pennzoil and my Volvo has over 350,000 miles!

[This review was collected as part of a promotion.] It keeps a junky old chevy V6 with 170,000 miles on it running!

We've been using the high mileage since our Chevy turned 200k/and she's been going strong for 40k. The beat product to extend the life of your motor.

[This review was collected as part of a promotion.] Run this in my city truck 90modle with 200k and still runs like new

I love this stuff. I have a Ford ranger with 350xxx miles. No rebuild on the motor. Keeps is running strong. Thanks Pennzoil

[This review was collected as part of a promotion.] I use it in my 95 jeep grand Cherokee it works great

[This review was collected as part of a promotion.] My old car is still running great, so that's a pretty good testament to the products I use in it.

I noticed this oil does not break down and gum up engines. It holds its integrity and that was noticeable at both oil changes and engine rebuilds.

I have been using Pennzoil High Mileage for a while in both of my cars. I'm sure it's the reason my cars both still run like the day bought them new!

i always buy older vehicles so they tend to have high mileage. we always use this and have no problems.