Fuel Consumption using Optimax
23 October 2001, 01:20 PM
#31
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I agree with BT52b, The drag is proportional to the speed squared. Even if the engine is working more efficiently on slight boost (i.e. less petrol per BHP produced) a lot more BHP is required to maintain the higher speed, this would outweight the efficiency improvement meaning more petrol per mile despite less petrol per BHP.
23 October 2001, 01:29 PM
#33
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I've just come back from Wales put Optimax in on the way there, filled up from a totally empty tank. I got 350 miles out of it. I've got a UK300 which I think is a 60 litre tank, and I was stuck in a lot of traffic on the way there.
23 October 2001, 05:59 PM
#34
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Well I tried it on the way home and I certainly couldn't hold my car with some positive boost pressure at 70-80 without it accelerating - it was quite a way below 0 on the boost guage to hold a steady speed - so I don't really understand that point.
As for the fuel consumption being better at this speed, i am sure that I have heard that it isn't from somewhere but if people say on here that it is better then I can't argue. I will try it and see!
As for the fuel consumption being better at this speed, i am sure that I have heard that it isn't from somewhere but if people say on here that it is better then I can't argue. I will try it and see!
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