I've never had any problems and keeps my engine running great!

We use this in our shop truck all the time! It's a great oil for anyone to use!

Used this in car a couple weeks ago and it ran like a baby!

I always use this product is the best of the world!!!

Using this product for years great oil and engine protection

I've found that using Penzoil for my oil changes increases mileage and overall engine performance.

Extremely happy with this product, have used it for years

I have been using this oil for years there is no exception.

This is an awesome product and we only use Pennzoil! Will never switch!

I bought this a couple weeks ago and the product is great.