[This review was collected as part of a promotion.] Pennzoil Full Synthetic 5w30 case of 6 is very convenient and a bit cheaper to buy than buying 6 individual. We have several vehicles so need to buy a lot of oil. Best oil we've bought in a while its quality is superb

[This review was collected as part of a promotion.] So I changed my oil at jiffy lube and always used the synthetic and I never knew how easy it was to change your own oil. This oil works great and I would recommend to use. My car has a 150k miles on it and it ran smooth

[This review was collected as part of a promotion.] While its hard to notice a difference between various oils, I "feel" like the Pennzoil synthetic makes the car run quieter. The difference is very small but I do feel like I notice a difference when I use it. It does pour out very easy and doesn't spill too bad. I highly recommend Pennzoil Synthetic oil!

[This review was collected as part of a promotion.] Used this in my last oil change for my Mazda 6 before doing some travel this summer. The car continues to run great, and the oil still looked clean when I checked it after running about 1000 miles in the heat. Oil is a hard to review, because it is one of those things you only pay attention to when it is not working, but I'm happy to report that this full synthetic has worked great for me.

[This review was collected as part of a promotion.] I just changed the oil in my minivan that I have used synthetic in forever. I have used the Pennzoil brand for many years in everything from cars to motorcycles, mowers and fourwheelers. I am pleased that Pennzoil has formulated this Synthetic and that it is priced reasonably. It will be my go to oil from now on.

[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.] So glad I came across this! Since using my vehicle seems to even be running better. I’m happy to know there is a product like this that will help keep My vehicle on the road longer! Happy to use and I recommend this type of oil to anyone who can use it!

[This review was collected as part of a promotion.] I have used different brands of oil in my vehicles over the years but the brand I keep coming back to is Pennzoil. Their full synthetic oil keeps my engine running smooth and I seem to get better fuel economy with it. I'll keep using the brand I trust.

[This review was collected as part of a promotion.] Pennzoil helps to keep my Buick on the road. While I'm not that great of a driver to notice every little difference an oil makes, Pennzoil has always been a quality brand. I use the 5W-30 to top off my car if I notice the oil goes below the fill line before I get to my mechanic. It's a Mom N Pop place and you can bring your own oil along for the oil change. I like that this Pennzoil gives me more miles between changes and keeps my engine running smoothly. 

[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.