[This review was collected as part of a promotion.] I have been using Pennzoil products for 40+ years without an oil related engine failure. Pennzoil Full Synthetic Oil has kept my vehicles running smooth. This is a good quality oil at a good price. Highly recommend

[This review was collected as part of a promotion.] This oil works best in my vehicle. I don’t know much about oil but this was suggested to me and it works great in my vehicle. Of course synthetic is always the way to go and this one does not break the bank.

[This review was collected as part of a promotion.] This is the best oil that I have used. It is long lasting and my vehicles run great with it. I will not use anything else in my vehicles and I think that their life is extended from using this. I wish I would have switched earlier... Well worth the money.

[This review was collected as part of a promotion.] I have a 2006 F-150 with 175000 miles and I want it to make it 500000! This is the only brand and type of oil I use in my truck and trust Penzoil over any other brand. My truck alwasy runs smoother, cleaner and gets better gas mileage with Penzoil. Whether you do a DIY oil change or not - this is the oil to go with here guys

[This review was collected as part of a promotion.] I use this for a multitude of things that uses this oil. It works perfectly in my car. I don't think I have ever had my car run so well before. It seems like it runs smoothly as well. I went on a few trips already out of state and there hasn't been an issue.

[This review was collected as part of a promotion.] This is my favorite oil. It out preforms all the other oil brands in my book. If you don’t get your oil changed every 3,000 miles this oil will help keep your car moving. It’s just the best in my book.

[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 like the fact that it is better for the performance of my car.I also like that is made from synthetic base oils and in its manufacturing converts natural gas into a high quality synthetic base rather than crude. Better fuel economy

[This review was collected as part of a promotion.] Pennzoil Full Synthetic Motor Oil is good quality motor oil that helps keep my engine running smooth. It is better than conventional oil and will allow for fewer oil changes in the future so that is a plus.

[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.