[This review was collected as part of a promotion.] I've always used synthetic oils in all my cars for the extended oil change interval and better protection against viscosity breakdown. The Pennzoil Full Synthetic is just as good as any of the more expensive options like Mobil-1 or Castrol. Oil changes are a great way to keep a car running for a long time and with this oil, I'm not worried about being a few hundred or even a thousand miles late for an oil change.

[This review was collected as part of a promotion.] Have been running this in my 2014 Wrangler (145k+ miles) since we reached 75k+ and couldn't be happier. Long lifespan and has been great in preventing other engine issues and usually get at least 4,000 miles per oil change

[This review was collected as part of a promotion.] I have always used Pennzoil products in all of my engines. When I recently purchased a newer car, I had the chance to run the full synthetic. Now I have changed over to the full synthetic in every application possible. This stuff is the good stuff! Great bottles with easy to open/pour packaging.

[This review was collected as part of a promotion.] I got the Pennzoil - Pennzoil Full Synthetic. I got a Dodge Ram Pick up Truck and i do all my own oil changes and this is the only motor oil I would ever use . I would definitely recommend this to anybody looking for a really great motor oil for high mileage vehicle.

[This review was collected as part of a promotion.] This Pennzoil Full Synthetic oil was super easy to use it made for great performance in my vehicle. It was easy to distribute with the shape of the bottle. I absolutely stand behind this brand. I would not turn to anything else.

[This review was collected as part of a promotion.] I have used Pennzoil Synthetic motor oi in my vehicles for years. I have had good luck with it. I drive a lot of highway miles at high speeds and I believe that Pennzoil is the best choice for high speeds and longer driving times. I run 8000 miles between changes.

[This review was collected as part of a promotion.] Penzoil is a premium brand for your car. It Cleaner pistons , better fuel economy, protects horsepower, unsurpassed wear protection, excellent performance in extreme temperatures Its was very easy to use in my car I did not get the big 5 gallon jug but six regular sized bottles. This is great for my car that does not have high mileage.

[This review was collected as part of a promotion.] Got this about a week ago to change the oil in my mom's car. Figured I had a little time, so why not do it myself? Use to do it all the time. Well, cars have changed since then, and it wasn't such an easy job anymore. Had to get some help...called in a mechanic friend to finish the job, and he and I both noticed the Pennzoil Full Synthetic has received excellent marks for durability and protection. It might be wishful thinking, but mom's car seems to be running better, just with the Pennzoil oil change added. Think I'll be changing all my cars to this product soon!!!

[This review was collected as part of a promotion.] Used Pennzoil full synthetic 5w-20 at my last change, replacing another brand. I run synthetic in my 2007 Chrysler Pacifica and this Pennzoil is doing just fine after nearly a thousand miles run on it. Seems to do better on it than the previous brand, which was already a huge improvement over conventional oil.

[This review was collected as part of a promotion.] This is my first time using full synthetic oil and I wouldn’t do it with any other company than Pennzoil. My buddy has been trying to get me to do this for several years but I have been stubborn. I finally decided to give it a shot and put the Pennzoil Full Synthetic in my truck. I have seen a difference already in the way my engine runs. I took it on a 4 hour drive and it was smooth as it was the day I bought it. I am looking to get an extended period on the full synthetic. I will continue to monitor this over the mileage. This oil was packaged in nice quart size individual packaging. Easy to pour and easy to grip. I am currently satisfied and would recommend this oil to anyone looking for a full synthetic oil.,