[This review was collected as part of a promotion.] I changed my oil with this Pennzoil Full Synthetic oil and will update this review in two and a half months after I complete another oil change. I put my old oil in an airtight container and will compare the Pennzoil to that once I do my next oil change. I have no other way of knowing how well the Pennzoil works other than to compare it to the brand I regularly use. I’ll be back! My wife says I can’t update reviews, so I will complete another review after my next oil change.

[This review was collected as part of a promotion.] I have for a very long time wanted to try a full synthetic motor oil in my vehicle, after using this product I will never go back to regular oil again. I notice o get better gas milage and the car runs much smoother.

[This review was collected as part of a promotion.] I usually take my F-150 in to have the oil changed but decided to do it myself. This is some quality motor oil. With the Pennzoil name you know it will be good. I have never tried full synthetic in my truck but with it's higher mileage I think this will work well. I have used Pennzoil products for years in my boats so I have no reason to believe this will be anything but excellent.

[This review was collected as part of a promotion.] I switched up my oil in my ride when I had my oil change about three weeks ago my car has been running smoothly since I half to say that Pennzoil Full Synthetic oil is the way to go I am going to be honest get yall some

[This review was collected as part of a promotion.] I always get Pennzoil for my car. I have to get the full synthetic since my car is foreign. Got this to do my own oil change and my car runs great. My car is getting higher in miles so will have to go with higher mileage oil next time.

[This review was collected as part of a promotion.] Pennzoil Full Synthetic oil is the way to go when you want high quality and a reliable product to keep your vehicle in great shape. It is the best oil out there. It is easy to use. The container itself is made where I have no problems with the oil leaking out of the bottle or anything. The oil is clean and I can tell my vehicle runs smoother. It is also great that I can go longer between oil changes with this full synthetic oil.

[This review was collected as part of a promotion.] I got this Pennzoil full synthetic to use in my f150. I usually take it to the dealer and they use a synthetic blend. Well my warranty is up so I figured I'll start changing my own oil and at the same time this will give me a chance to keep an eye on what's going on under the truck. (leaks and such) I've used pennzoil in the past on other vehicles with good results so this was pretty much a no brainer. Time will tell but with a company that's been around this long they must be doing something right!

[This review was collected as part of a promotion.] What can I say, great product from a company that is well known and trusted. Feel comfortable knowing this will keep the cadillac running for years to come, great product and packaged well when shipped to my house.

[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'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.