What oil weight is spec'd for a 1998 Jeep Cherokee 4.0 inline 6 cylinder? It has been run with Mobil 10W/30 bulk oil. Am I safe with a 5w/30? How about a 5W/20? I have a good stock of 5W/30 Havoline High Mileage.
The Jeep has only seen about 1000-1500 miles per year for the past 15 years. It was changed once per yer. It was a fleet vehicle where I work and was just driven short distances on campus.
Thanks for your input.
The Jeep has only seen about 1000-1500 miles per year for the past 15 years. It was changed once per yer. It was a fleet vehicle where I work and was just driven short distances on campus.
Thanks for your input.