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Overdrive and towing

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Old 08-09-2011, 05:27 AM   #21
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Originally Posted by transplant View Post
or just change the fluid more often??
If you tow frequently, it'd be a good idea to change all your fluids more often, engine oil, transmission and differentials.
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Old 08-09-2011, 06:27 AM   #22
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Definitely change fluids more often. Towing is tougher on a vehicle than just rolling down the road. Before each TT tow I make sure all fluids and TIRE PRESSURES are good.

Also I change oil more often when towing alot and tend to change it a little early if it hadn't been done and I am about to tow.
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Old 08-09-2011, 08:49 AM   #23
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A quicker harder shift is actually easier on the transmission heat wise. A real soft smooth shift happens because there's a bunch of clutch slippage going on and slippage equals heat. Think of it like lowing something from a rooftop on a rope thru your hands. If the rope is sliding thru your hands and you start braking it smoothly to a stop you might get rope burn, but if you just grab it solid you won't. You could end up having a jerking impact to your arm or something though instead.

Frequent fluid changes help but that doesn't make it okay to overheat the fluid. Just like if you ran a 24 hour quickie-mart and had a melted nacho cheese pot. Keep the heat within reason and you always have nice melty cheese. But if you let it heat way up it'll burn and it's wrecked right now. Maybe you can change it in a few hours but it doesn't make it any less burnt and gross right now and it doesn't undo the burned-on sludge at the bottom of the pot.

The other thing to keep in mind is you can't do a full fluid change so you want to keep that fluid in good shape. ATF does everything for the transmission, it's a lubricant but it also cleans, cools, works the shifting, and actually transmits the engine power from the in-side to the out-side. Just like your blood, if you don't take care of it and it fills with junk or were to boil there'd be all sorts of damage and draining out 20% and putting in some fresh stuff wouldn't fix the problems.

The ATF warning light it good too but it's too last minute. Where it comes on is less "shift down now and back off to prevent damage" and more "pull over and stop now to prevent damage". Just like your low oil pressure light isn't a heads up to check and top off the oil at the next gas stop, it's pull the f over and shut it down now. The temp gauge is the same thing, when it gets into the red you're overheated now, not getting near the danger zone. Why do they do this? It's to prevent time wasting dealer visits by the uninformed motorist.
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