I've been using 5W-30 for 60,000 miles to prevent piston ring wear and oil burning. It did not help, as 3.8L burns about a quart every 1,500 miles. I used Mobile-1 synthetics and changed oil every 3,000 miles.
I should've switched to 10W-30 when I bought the Jeep. I really belive 5W-30 is still too thin. No engine should burn quart of oil every 1,500 miles
2009 JK Rubicon
Shrockworks Mid-width, Warn 9.5Ti; Skid Row Engine Skid, LCA & Evaporator Skid; Rock Hard Gas Tank Skid; Warn Stainless Steel Diff Skids, 11,000# Pull-Pal. Uniden 520XL CB; 1" Front & 1/2" Coil Spacer Rear; Aeroforce Interceptor, Valentine 1.
Moab - TJ-4/2006, TJ-5/2008, 4/2009, 5/2011, 4/2013, 5/2016, 4/2017
Ouray - TJ-8/2007
Rubicon - TJ-9/2008
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.