[This review was collected as part of a promotion.] I've only recently made the switch to using Full Synthetic oil on my SUV and chose Pennzoil. I change my engine oil every 5,000 miles and extremely happy with the performance of my engine after the first oil change to Pennzoil synthetic. The SUV runs smoother and quieter than before. Engine runs smoothly after

[This review was collected as part of a promotion.] I have always used Pennzoil in all of my vehicles. It is the only oil that goes into them. The full synthetic is absolutely the best, I will continue to use this going forward. If you're looking for a full synthetic oil, this is it.

[This review was collected as part of a promotion.] I will start by saying that if you are looking for a detailed analysis of the oil itself, you should look for a chemist or petroleum engineer. So, I won't comment on what the oil is made of itself. Instead my review is on using the oil. I do my own oil changes and have been using Pennzoil for a while now. I really like the oil. My car has been running fine and have had no engine issues. I have nothing but a positive experience with Pennzoil. Now, if you want to decide which oil to get my honest opinion is that the brand doesn't really matter. As long as it's a major brand it will be fine. The most important thing is to make sure that you get the right oil. Check your owner's manual or pop the hood. The oil type will be written on the oil cap.

[This review was collected as part of a promotion.] This is a great motor oil! I use it in my car and it runs a lot better now! I recommend it to all of my friends and family that have cars or other vehicles that require the use of motor oil! It’s really great!

[This review was collected as part of a promotion.] I used Pennzoil full synthetic in my generator and noticed how the generator ran more smoothly. The bottle design allows for easy pouring and transferring it out of container. Overall, a quality product.

[This review was collected as part of a promotion.] This motor oil works great for my car. I used it for an oil change and had no problems. I also love the handles which makes it easy to carry. The scent is overpowering but its to be expected with motor oil

[This review was collected as part of a promotion.] Pennzoil makes some of the best oil money can buy and it’s all I use in all of my vehicle’s especially my project cars the protection is unmatched and I most certainly recommend buying pennzoil in your vehicle I was put on to this by my father and older brother and they both use it in their cars,the price is always great no matter where you buy it

[This review was collected as part of a promotion.] You want to keep your car in excellent shape, always get nothing but the best. And Pennzoil Full Synthetic is what i rely on to keep my Highlander last longer. It's like knowing you're in good hands and Pennzoil is great quality for ease of mind.

[This review was collected as part of a promotion.] Pennzoil is the only brand oil i use in my Ford f150. Pennzoil full synthetic oil last a lot longer than almost all other brands of oil. It also makes my truck run smooth and helps the engine run better. I highly recommend this oil.

[This review was collected as part of a promotion.] This is a great quality and amazing oil for your car. I suggest you shake this bottle very well as the additive falls to the bottom of the container and you want this to go in your car correctly the additive looks like a sandy type material on the bottom of the container. The oil is just right to get the engine running well. This truly works wonders for my car.