towing a 27' boat for 4 hours???

[vietnam20]

I have a ??
I am planning on towing a 27' boat (7000-ish lb) for 4 hours any precaution.
my engine shouldn't reach what temp.

and on the highway should i turn off the towing or should i leave it on.

Thanks for the help.

[hcvone]

I tow a trailer that is 26 ft and weighs over 7k loaded, and many times it for 6-7 hours, it is in the winter. I use the tow mode for the mountains but on flat highways I use it in the regular mode. I have towed in the summer and never really had any temp issues, it was like I was not even towing looking at the gauges, of course that is not true for the gas gauge.

[vietnam20]

would towing in regular mode benefit engine, gas, etc VS the hauling mode?

[hcvone]

Not really, when you are towing heavy weight your gas mileage will be pretty poor, not as bad on flat ground, but still pretty bad.

[teutonictrio]

Engine temp is probably not something to worry about, but transmission temp is. At those weights, you will definitely be pushing 200 degrees more than once. I think you have to be careful if you sustain transmission temps (check your tranny temp gauge in the digital readout - that should ALWAYS be on when you are towing, look at nothing else on the computer) over 207 degrees for a period of time.

[hcvone]

The trans has synthetic fluid in it, you should have no problems even if you get about 250 degrees.

[teutonictrio]

Good to know!! Whew!