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 Topic: Automatic or manual
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Message posted by Colin2129/3/2017 at 8:14pm
Outfit: 1992 Elddis Wisp 450CT + X Trail Location: East Herts
Joined: 05/11/2013
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Colin21
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Quote: Originally posted by keith p on 29/3/2017
Hi,
The DSG auto is far more efficient than the Torque Converter autos which generate a lot of heat through the fluid drive which in turn leads to poorer fuel consumption. Towing with a torque converter box may require the fitment of a gearbox heat exchanger.
True to some extent Keith, but largely outdated. Some TC boxes may (as you say) require a heat exchanger for towing, but many like my Volvo are already so fitted.
Many years ago I used to tow with a Mk 2 Cortina. At times I towed a large trailer on which I often had cars larger than the Cortina. Before doing so I contacted Borg Warner, who made my gearbox, and asked for their advice about fitting a cooler to the gearbox. They advised instead that I fit a temperature gauge to the box, which I did, and they told me to stop for a break if the temperature exceeded a certain point, which it never did. That was a car built in 1966, with a 3 speed auto.
My Volvo does 40mpg solo, around town, and 50mpg solo on a run. Towing makes little difference to that, but my caravan isn't particularly big or heavy. Not bad though for a 17 year old car weighing nearly 2 tons. Would it do that much better with a DSG box?
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Best Regards,
Colin
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