[This review was collected as part of a promotion.] Full synthetic is great for my wife's car. Got these to keep in her trunk, she gets paranoid when her oil goes below 15 percent so she can keep this for those days. Until I can get around to doing the oil change.

[This review was collected as part of a promotion.] After so many years of paying the shops to change my oil, I decided to start doing it myself. Pennzoil was my first go to since all my mechanic friends raved about it. I changed the oil as normal and decided to wait and use it for a little bit of time before writing my own review. The quality of the oil is very high. It runs cleaner and I can tell the difference in my vehicles after changing from the oils the shops use. There is an additive that is used in the oil. I did notice that if I did not shake the bottle well enough, there was additive at the bottom (you can see the difference in texture when pouring). I will never take my cars back to the shop again for an oil change and I will always use Pennzoil!

[This review was collected as part of a promotion.] My car uses full synthetic or semi synthetic 5w20. I have never tried pennzoil before. Generally whatever the dealership puts in my car. But so far so good with pennzoil. I have used them in the past with conventional oil but not synthetic until now. So far I am very pleased with the product and their price point.

[This review was collected as part of a promotion.] Cleaner pistons, better fuel economy, made from natural gas not crude - what's not to love? The 5 quart bottle is convenient to both use and store in my shed for future use. This is the only synthetic oil I will use for my portable generator in Florida to help keep it ready for emergencies.

[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 bought this to try the Pennzoil brand on the full Synthetic oil and seems to be good quality, used it on my 2015 jeep renegade, will see after 1000 miles how is the color and texture, the kit is convenient and had enough oil for the change

[This review was collected as part of a promotion.] You pay so much for your car, so you definitely want to use the best products for it and this oil is definitely something your engine will thank you for. I've never had any engine issues when using this type of oil and it runs smooth.

[This review was collected as part of a promotion.] I got this to try in a vehicle we have with high milage. We have only used synthetic oil in our vehicles for about the last 25 years. This Penzoil product seems to perform well compared to my regular brand. Even though it's the summer and it has not been in the vehicle very long it does seem to be doing an adequate job. I would like to reevaluate in the winter and at the end of this oil's life cycle, but not sure I know how to reaccess the review site.

[This review was collected as part of a promotion.] Pennzoil Full Synthetic Oil is tough stuff. This oil puts up with the real deal drive it like you stole it abuse. Dump the old and refill the life juice of your engine with this great stuff. came out looking like it went in. its a great reliable choice for all performance machines.

[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