[This review was collected as part of a promotion.] My vehicle is my baby and I am always worried about the products I put in it. Being a mechanic Pennzoil is the product we usually use in the clients vehicles and they have had many good things to say about the brand, so this is what I use for my vehicle and I have had no issues with it! This is great quality and great for you vehicle.

[This review was collected as part of a promotion.] Received this Oil a few days back ,have been a user of Pennzoil Brand for many years now and never have had any engine problems with my car or truck .Started using Full Synthetic in my high mileage truck and it still going strong with over 280,000 miles on it and i owe all to the Oil I use Thank you Pennzoil

[This review was collected as part of a promotion.] This oil lasted longer between oil changes. I also noticed my car drove a bit smoother and feel a lot better overall. I’ll keep using this oil since my car is sounding a lot healthier and I don’t have to change the oil out as often.

[This review was collected as part of a promotion.] I switched to this after using a competitor's full synthetic, and have noticed a difference in my higher milage car. The idle is significantly smoother, as well as engine noise has been reduced. I'm looking forward to harsher driving conditions this summer due to additional heat to put it to the test, but as of now, I have no worries its up to the challenge!

[This review was collected as part of a promotion.] I was sent a case of six bottles of Penzoil Full Synthetic oil to try. First off I was shocked that I ended up getting a case of this oil. This oil works great for my car. Sometimes I tend to buy cheaper oil and I think that that oil does not work as well. Using Penzoil I know that it is better for my car and lasts longer. Having six separate bottles is more convenient than having to store a big bottle. This oil has just the right amount of thickness, meaning its not watery like some other brands.

[This review was collected as part of a promotion.] The oil is good to change. I did a partial clean and not a full flush, and feel the quality of Pennzoil is better than other generic oils to use in a car. I am satisfied with the quality of the product and would recommend it.

[This review was collected as part of a promotion.] I started using pennzoils full synthetic oil on both my trucks about a year ago. Long lasting...I typically go about 7,500 miles between oil changes and the oil still looks good when I drain it. Could probably go another 7,500. Not all oils are of the highest quality as pennzoil

[This review was collected as part of a promotion.] If you are like me and do work on vehicles at home like changing oil, adding windshield washer fluids, etc than boy do I have the perfect oil to be used to change yours at home in the comfort of your garage, shop, or even in your driveway or grass. I'm always tinkering with mine and my family's vehicles and one thing I always remember to do is to change the oil as it approaches the mileage recommended. While I've used different brands in the past Pennzoil Full Synthetic is top notch in my book! I get the box containing 6, 1 QT bottles of Pennzoil Full Synthetic 5W-20 which gives your vehicle 40% better performance than conventional motor oil. Although this brand has many varieties this particular one offers not only better fuel economy but it will go longer between oil changes, protection in extreme temperatures, conditions older seals as well as protection against sludge & deposit build up. Those being my main concern with my wife and teenagers driving. It's an amazing feeling knowing this trusted company had any consumers worries to a minimum of not gone completely! I am a repeat Pennzoil purchaser but think I'll continue using this particular one for adding oil to doing the works with helping my family with complete oil changes.

[This review was collected as part of a promotion.] Awesome oil as always and seems to work great in the car. I highly recommend this oil as it is all I have ever used in my vehicle. It is well worth it and seems to help the motor last a lot longer for some reason

[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.