sunday im going to pick up a 2002 SS camaro le35 9k i have a 2006 cc2500hd. 15k miles my ? is should i have tow haul on at all times. the trailer is 1500lbs. and on way home car will add 3600lbs. my buddy is going to drive most of the way. 600 mile trip each way. its his trailer. he tows 100 to 200 miles normally. he's got an old dodge 12v. he's driven my truck before for a short time. loves the power but ? towing ability. can i get better fuel milage by leaving it off.

Your fuel mileage will drop a tad with tow/haul on. I generally leave it off unless i am climbing, or descending a steep grade. With only 5100lbs behind the truck you won't even know it is there, what is to question about the towing ability?

hes a dodge guy still thinks if its not a cummins it cant tow ive tried to mention the 650ft pnds. but the chevy is new to him. great guy but also likes ford performance cars more than chevys. l

leave it in tow haul with the car on the trailer thats what its there for. it shifts great just ike you would want. and enjoy you wont know its behind you.

Manual says below 75% of CGWR then tow\haul isn't required. That is in the neighborhood of 16K lbs and your looking at 12.5K so your well under. I use it when accelerating and take it off if the roads are like 50MPH to get better mileage. On the highway I leave it on and 6th gear kicks in at 60MPH or so. With your load though you can certainly elect to leave it off all the time.

Moved to the Towing Section!