Join Date: Jun 2014
Location: Tallassee, AL
Thanked 232 Times in 222 Posts
Mentioned: 6 Post(s)
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I have never had any oil temp problems when towing my 5th wheel. In the Rockies, it would climb to like 245 and once the crest was reached and started down the other side, it quickly when back down to low 200's.
I do use 5w40 full synthetic oil as called for in the severe duty schedule.
I don't see any need for their cooler.
2015 F350 Ultra Lariat 6.7L CCLB DRW 3.73 Limited Slip, Green Gem Metallic w/ Caribou accent, Camper Package, Titan 65gal tank, Rapid Heat, Block Heater, Upfitter Switches, Dual Alternators, Cable Lock, Husky Floor Liners, Spray in Bedliner, 5th Wheel Prep, 25K 5th Wheel Hitch, Ford Goose Neck Hitch.
Traded 2011 F350 XLT CCLB SRW 6.2L gasser 6,000 miles for 2015
Sold 1996 F350 XLT CCLB DRW 7.3L 208,000 miles