Had a 2002 explorer, in which timing chain guides are KNOWN to go very bad, causing catastrophic failure. Always used high mileage penzoil and have now doubled the mileage that most people's break at!! Extremely satisfied with this product!

[This review was collected as part of a promotion.] I have been using Penzoil for over twenty five years..still use it in my 81 Blazer to my new Ford F150

[This review was collected as part of a promotion.] My hubby only uses Pennzoil to maintain his high mileage truck. We depend on our truck as we pull a fifth wheel across Michigan and need a good running truck. Sweepstakes entry

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've been using this oil since my car turned 100,000 miles. I can't see myself using anything else.

At 5,000 miles oil is still yellow! Never a hiccup or concern with the motor on any of my vehicles (1968,1986,2001,2004). Good for any generation motor and make! I will never switch brands and I suggest it everywhere I go!

[This review was collected as part of a promotion.] My husband insists on this high milage oil for our Toyota. He only uses this kind and this brand! Never had any problems with it!

[This review was collected as part of a promotion.] When we got this car a friend told me make sure you stay on top of oil changes with this particular model. It's still going this is all we use

[This review was collected as part of a promotion.] Works great for older vehicles that need the extra engine protection from wear and tear. I use this on any vehicle that has seen alot of miles.

I've always used Pennzoil as my number one oil to change out my truck and it has never let me down, not expensive and not cheaply made either, I will always use Pennzoil.