I have two Fox body Mustangs and have been using Mobil 1 since my rebuild. Best oil ever and I honestly believe using Mobil 1 helped prolong the use I had over the original setup I had in the vehicle. All around good stuff that is formulated in Mobil's lab and they are terrific with their product lineups. I don't ever second guess them at all! Car feels better everytime I do the oil change in either of the Mustangs with Mobile 1.

I used it on my motorcycle for experiment and it turns out a better performance..

This is my first time trying this product to my SUV that has over 100k miles! I think this oil will be very effective! Mobil 1 is the only oil I will ever use!

I use this to keep my cars protected. My drag car and my track car are changed at normal intervals but the added protection keeps the engines in great shape and is worth the little extra cost on high performance cars.

I bought my Chevy HHR SS new in April 2008 and it came from the factory with Mobil1 5w30 and has only used the same for over 8.5 years now!! We have 65000 miles on our car,runs strong and quick(the turbo helps) and thankyou Mobil1 !!!!!!!!!!!

I have been using this oil for over 100,000 miles at speeds up to 130 mph, and on the freeways of SoCal. Best oil I have ever used. When changing oil it still has good color not even close to being black.

I wasnt satisfied with this Product at all. It didnt last the expected mileage and to top it off I was short a quart when I did a new oil change. I used both the extended life oil and filter. I will stick with just the regular synthetic oil.

Been using Mobil 1 synthetic for 26 years in many vehicles. Have had several vehicle with 450k. Never an engine failure. Worth every cent. Use in gm trucks, vet, and harley. Would not use another brand. tom k, virginia

I drive over 120,000 miles per year and one of my cars,a 1992 civic has 738,000 miles on it.I use only mobil 1 5-30 ep in it and the engine runs like new.

Have been using for 22 years and have 1010000 miles on my wife's 2000 RAV 4 change every 5000 miles and does not burn any oil, don't have to all oil at any time