oil weight question
My wj 4.0 I6 calls for 5w30 in the winter and 10w30 in the summer. I've been following this for the past 2 years. Should I continue to do so, or is 5w30 ok year round? I run Mobil 1 full synthetic. Thanks for any advice!
-Michael-1999 Jeep Grand Cherokee WJ Laredo (oo\|||||||/oo) selec-trac 4x4. -She's gone
Now-2005 F-150 Fx4 scab, silver w/blk leather, '11 Fx4 badges, weathertech digital liners, white LED interior
Future-2.5" leveling kit, flowmaster dual exhaust, k&n intake, 5% tint, ptm handles/mirrors, Harley-Davidson headlights/tails, factory tow mirrors, kmc xd rockstars... :cool: