Valvoline 797976 32 fl. oz MaxLife High Mileage Motor Oil

Good oil.

iv bean useing this sins it came out in the 90s and it duse the job. reinvigerating old seals like the rear main seal valve seals to stop or slow down old leaks. if you stay with the brand

Greta bought this oil, and it’s a great deal. It’s good quality oil and it ships fast. I bought three 1-gallon jugs for $20 and change, I think. It was a good deal, and it keeps my engine protected. I have plenty of oil for when I do oil changes around the house on different vehicles, and I also use it in my mower and other things. I haven’t had any issues using it in the past, so I recommend it. But everyone has their own opinions, so you should decide for yourself. But one thing’s for sure: this oil is a great deal for the price.

The majority of jeep 4.0L owners think modern oil is bad and can't protect a old flat tappet engine. I have been using standard Valvoline 10w30 for 30 years in the 4.0 with no issues. I switch to high mileage synthetic blend after 100k miles for its cleaning and reconditioning properties. The high mileage synthetic blend has all the protection a flat tappet cam needs with modern technology.

Good oil quality, low price.