[This review was collected as part of a promotion.] I have switched from regular oil to synthetic one last year and I will never come back. It saves so much time, money and labor work. I use the Pennzoil oil for both my truck and my wife SUV. I do all the oil change so it's great to experience the big difference this oil can make. The cars run smoothly and nicely. But the most important is it takes less time to change oil for each car. Before I used to change at least every 3 months, now I can wait till 9 months or a year depending how much I drive. Like I said earlier, after using synthetic oil, i will never go back to the the regular one anymore.

[This review was collected as part of a promotion.] This Pennzoil Full Synthetic Oil makes my car run great and smooth. It’s your entry level synthetic oil, but Pennzoil does a great job at making a true synthetic oil so you know you are getting the real thing. I like the design of the packaging and the consistency of the oil, it’s a quality product throughout. I highly recommend this oil to anyone looking for a high quality, long lasting synthetic oil for their vehicle.

[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.] This is great oil, definitely prefer this over any thing else on the market. Super clean, engine has been running amazing. Will continue to use this synthetic oil for many more years to come. I absolutely recommend this product if you're looking to switch over from any other kind, especially if you're getting over that high mile threshold.

[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.] Got a case of this oil for my boat. Changed the oil for the beginning of the boating season. Seemed to have a great texture and consistency. I am please with the results and will be using this for my future needs

[This review was collected as part of a promotion.] We needed a Full Synthetic Oil that would work on our vehicle to keep it running in top notch condition. The synthetic oil by Pennzoil is a great value for our cars. It has the right amount of additives to insure that your car is running at its best condition oil wise. It is easy to pour and the handle is easy to grip and carry. The container is also easy to store while not in use.

[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.] I have used Pennzoil for years. My dad used Pennzoil in everything when I was little. I got a case of synthetic oil for all of my annual services on all of my small gas engines. I have done all of my preventative maintenance with Pennzoil and never have had a problem.

[This review was collected as part of a promotion.] I've been using Pennzoil oil for a very long time. And now that our Honda is getting a bit up there in age and wear, I decided I wanted to transition to synthetic oil. Since I e made the transition, I've noticed a slight increase in fuel efficiency and how the engine runs. I'm excited to see how well it performs as the year goes on, but I know I can always trust Pennzoil, so I'm expecting solid results!