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Originally Posted by andyn666
I adapted my driving style and am now getting nearly 43mpg. I added the kill switch at the start of this tank and so far seem to be getting more than 50mpg, but time will tell on that one.
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Imperial gallons, I presume ?
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Anyway my car is fitted with a aux heater that cuts in when the ambient temp is below 5c heating the coolant to 85c before cutting out, the question is will it save me fuel if i put a switch in to activate the heater went i want, to heat the engine quicker? The heater runs off diesel so is using some fuel to heat the engine but it will heat the engine abound 20-30 times faster than just driving the car.
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That's a tough one.
It's beneficial to heat the coolant - and the engine with it - from a fuel efficiency and from an emissions point of view.
Usually done electrically, and as such doesn't show up in the fuel log.
But when the heating is done using the car's own fuel ... it's anybody's guess what the net results will be.
Give it a try
