Our daughter's car has almost 200,000 miles. Since our goal is to keep it running as long as we can, the only oil we use is Pennzoil High Mileage. Every 5,000 miles the oil is changed because we can depend on Pennzoil to keep the car healthy.

I tried the high mileage oil for the first time. I noticed a slight difference in my car but nothing substantial. My car still runs great, and I might get a few extra miles to the gallon.

[This review was collected as part of a promotion.] I've been using this oil since my car turned 100,000 miles. I can't see myself using anything else.

[This review was collected as part of a promotion.] I've used Pennzoil for years on my older cars and it has help extend the life of them by at least 4 years without having to rebuild the engine.

[This review was collected as part of a promotion.] I use this on both of my cars and the outcome has been great! We live in cold country MN and it has worked wondrous for us.

Started using high mileage in my 67 firebird convertible, I can tell an incredible improvement in compression and performance over standard motor oil!

Just recently switch to the pennzoil high mileage oil and my truck is running like a champ. I change my oil frequently because I drive so much and this oil helps maintain good performance and gas mileage.

My car is a 2008 Chevy Impala LS with over 170,000 miles. This product amazes me. I get better gas mileage and it feels and runs better Now that I use this.

[This review was collected as part of a promotion.] I used to use this in my pickup truck. I found that it burned quicker that another leading oil I switched to. It might be a great product for tow/city drivers but definitely not long hauls.

I was recommended yo use this on my prior car when I changed mechanics, and it made a noticable difference on how much car ran. I drove an older Taurus with 100K+ miles.