This week we had to take the valve covers off my 2002 Jeep Grand Cherokee Limited. Finally had a valve stick & kick off a rocker arm after 250,000 miles. I bought this Jeep in 2007 with about 50,000 miles on it, & since then it has had nothing in it but Mobile 1. When we took off that valve cover, the cams & all still look new! No gunk anywhere, just clean oil soaking everything. Thank you Mobile 1 for keeping my Jeepy running to a quarter million miles, & longer after we fix the current issues ;)

I started using Mobil 1 back in 96 when I bought my 1996 Chevy C1500 pickup. right away, after the engine was broke in and had some mileage on it, I changed it to Mobil 1 Synthetic and no issues. After I sold the truck and brought a new 2002 Chevy Silverado with a 5.3Liter, I did the same thing. immediately switched over to Mobil 1 and I still have the truck and it has 135,000 miles on it and runs great, smooth idle and no leaks!! I have added two other cars to use Mobil 1 oil and I have a 09 Impala SS with a 5.3Liter and just bought a 2015 Fusion Titanium 2.0l turbo that are using Mobil 1 and the Mobile 1 oil filters. I go between 5000 to 6000 miles for the oils changes and to know I'm using this oil, I feel my engine is protected and gets through cold winters and hot/humid temps in the summers. I'll never use anything else, but Mobil 1 synthetic!!

Started using in Hawaii in 1977 in my 74 Volvo which required manual valve adjustments. Valve gallery stayed clean even with short mileage drives. Kept Volvo until 1986 and engine still ran smoothly with virtually no oil burning. Been using in all my vehicles since 1977. Do not compromise on engine oil; use Mobil 1.

[This review was collected as part of a promotion.] I don't think we would ever consider using a different product than this one. The quality is absolutely superb. I have not run into any problems ever with the engines we have used this oil in. We will continue with this product as long as we can.

I purchased a 2000 grand marquis in 2001 with 22,000 miles on it, changed the oil to Mobil 1 5W-30 fully synthetic oil and set it up on routine changes every 7500 miles. Today August 2019 I have 584,632 miles on it and its still running strong, with no major repairs to the engine. Oh yes, I went through many spark plugs, coils, belts, hoses and lots of tires but no repairs to the motor. I give this credit to Mobil 1 oil.

To me, Mobil 1 is by far the best oil to use in your vehicle. I purchased a 2003 Ford Ranger, 3.0L, 24K miles, the end of 2007, 4 + years old ! I changed the oil to Mobil 1, 5W-20 on the first oil change I did. The first thing I noticed was the engine appeared to run quieter ! Interesting. I can't say if the MPG improved, I didn't keep a record, but the engine did seem to run better overall. It is now 20 years later, still running Mobil 1, 5W-20, in the same 2003 Ranger, and the motor is still running great, no major repairs, starts every time I turn the key, still sounds great, you would never think I had the original motor in the truck. My secret is: 1) Full Oil/Filter changes every six months (twice a year - January and July). 2) Change the Filter in between the oil changes, three months intervals (April and Oct), and add Mobil 1 to top off the engine oil lost when changing the filters alone. 3) Start again Jan Oil/Filter change. It takes 4 Filters, Oil Filters of your choice, 2 Cartons of Mobil1 (six quarts in each carton, purchased at Costco, great price); 5 quarts of oil for the engine during the January and July oil changes, and an extra quart for the oil filter change (April and Oct). Simple RIGHT ! Cost: approximately $80.00 yearly. I know I could get far more milage on the oil... but more oil changes, is better in my book. Thanks for reading. NOTE: I am running Mobil 1 in my new Dodge and in my latest purchase a DR PowerEquip. XL30,20HP V-Twin Brush cutter, which I am expecting a long life on the motor.

I first started using Mobil 1 when I bought my first Mercedes SLK in 2005. I drove that car for 13 years without any motor problems what so ever. In 2010, I purchased another Mercedes E550. I'm driving that car today without any motor issues. I've been using Mobil 1 in my lawn mowers, snow blower, and home generator for the past 10 years. !n 2017 I purchased a new Honda Ridgeline. I've been using Mobil 1 in it since the first oil change. Last year I purchased a new Corvette Stingray. Of course Mobil 1 again. I believe Mobil 1 keeps my engines cleaner and increases my gas mileage.in all of my cars. I recommend Mobile 1 for any 4 cycle motor.

I first used Mobil 1 in my 1999 Toyota Camry, I used for 4 years, in 2019 I got 2007 Toyota Corolla till 2022 when I sold it with 32% increase of the original price, for 8 years I never experienced any engine issues. Mobil 1 has been safer and protector of All engine parts

I used to use dinosaur oil and changed at 2000-3000 mile intervals. Back in 2012 I bought a brand new Camaro, v6, and it called for blended oil and it needed to be GM/Dexos approved. The price of blended oil and full synthetic was the same so why not go with full synthetic instead. I traded the Camaro off a few years ago for a '17 Colorado with basically the same engine and it will get Mobile also. I am such a believer in Mobile 1 that I now go by the oil life meter and now run until it tells me to change which is between 4000 to 5000 miles. I will likely be a customer for the rest of my life.

Ever since a friend introduced me to extended wear oil products from Mobil 1 I've been loving only having to change my oil once per year. Be sure to check it once a month in case you have to top off if your engine burns a bit of the oil, but otherwise if you're under 15k miles per year on your car like I am, no need to change it 2-3 times a year, once will do. I've been using this oil for most of the 11 years that I've owned my 2003 Suburban (and my VW Jetta, Toyota Corolla, and Hyundai Elantra -- rest of the family). I have over 100k miles in all of my cars (almost 200k in a couple) and they all purr like kittens. Feel confident in using this oil once per year