Use it in all three of my vehicles, 98 F150, 98 Lincoln Mk VIII, 2005 Explorer. Definitely helps keep engine internals clean. Been using this for over 10 years, no complaints

Back in the day, a 5 qt. jug was enough for an oil change. Most cars now take 6 quarts, or more. This box and a filter is all I need to change the oil in my Jeep. The individual quart bottles are easier than horsing around the big jug, too.

Have used mobile 1 full synthetic engine oil on my car for many years and been very satisfied. The car now has got over 240k miles and still runs smooth.

Due to the cold weather, I changed the oil in my back up generator from heavier oil to 5W30. I shopped around and Sam's had the best price. I ordered it online and picked it up the following morning.

I’ve been using Mobil 1 for quite a while and i feel like it’s keeps my engine protected. I know the corvette racing team uses it and with the stress those engines go thru I think it will be perfect for my cars and trucks.

Great deal on Mobil 1. I was buying Amazon Basic full synthetic, which is Dexos approved, but started getting. valve tap at 4500 miles. So it’s Mobil 1 for now on. Plus it was about the same price

I thought I’d have to at least add oil after a 1600 mile trip. When I checked the oil it was perfectly clean and barely moved. I highly recommend this oil.

Great motor oil, have always used it. Giving it 5 stars even though the delivery was short two box's Erika in customer service was so helpful with getting the problem resolved.

Bought the 5 qt container during Black Friday deal for $20ish. My Ford Escape takes 5.7 quarts, so needed an extra quart. Will keep an eye out for sale prices on individual quarts for subsequent changes.

I've used Mobil 1 since it came out long ago. I do all my own repairs, have never taken a vehicle to a mechanic except for warranty/recalls. My first new car was in 1968.