Originally Posted by turbohawk
Sunday I towed my lil 17' fish/ski boat for the first time with the Ram
. It didn't even know it was there except the gas mileage dropped about 3mpg but I also did activate the tow/haul mode.
Funny thing about the indicated transmission temp is that it was actually about 10 degrees COOLER than the day before pulling nothing in pretty close to the same ambient temp/humidity levels. Perhaps there is "active" cooling measures when tow/haul mode is activated? (didn't read that in the manual yet).
The boat ramp was slimy as all get out, people were having a hard time pulling out their empty trailer, much less a wet boat out of the water, I was so glad to have the 4x4 switch. Pulled out without even the slightest slip.
Curious, but would your F&S boat even need tow/haul mode activated?
I ordered a new Ram so I don't know the number's but I believe with my current Sierra with the 5.3, it suggests not using the tow/haul until 1/2 or 3/4 of the total allowable weight is being pulled?
I also tow a 16.5 F&S with a 90 4 stroke Merc but haven't used my tow/haul mode as I am way under the recommended limit (1700-1800Lbs)
No harm in using it, but as you noticed, it cost you some mpg's.