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I tried searching with no success. I need to know what the best oil would be to run in a 2007 Yukon XL with the 5.3L V8, aluminum block and heads, with 13,000 miles on it. I cant find any UOA's or maybe I just missed it somewhere. This is driven 7 days a week with some towing in the spring and...

EQUIPMENT MAKE: 98’ Jeep Wrangler Sahara EQUIPMENT MODEL: 4.0L Inline 6 FUEL TYPE: Gasoline OIL USE INTERVAL: 1,963 Miles OIL TYPE AND GRADE: Valvoline Max-Life 10W-30 MAKE UP OIL ADDED: COMMENTS: Thanks for the note. It sounds like you take meticulous care of your Wrangler and it shows in...

I have a 1998 Jeep Wrangler Sahara 4.0L. A couple months ago I upgraded the ignition system(new coil, rotor, cap, plug wires and plugs) because it was idling rough. Well, its been in now for a few months and its a little better but still on the rough side. The best way to describe how the idle...

Wuts up guys, I have a 98' wrangler sahara with the 4.0l I6. It has 102,000 miles on it. In about 3 weeks Im going to be headen off to college for 6 months. I will have to leave my jeep at home in my garage. I told my father to drive it once a week to work, about 5 miles one way. Just wanted to...

Hey guys, im new to this site...although ive already spent way too many hours on it. I just bought a 98' Jeep Wrangler with the 4.0 6cyl. Ive spent hours pouring through this forum and trying to take it all in. I want to run a full synthetic because I want maximum protection. Taking care of my...