Quote:
Originally Posted by Arragonis
The trade-off can be difficult to calculate though. If I coast in gear then I use no fuel and with long gearing (30mph / 1000rpm - 6sp Diesel) I can coast for a long time and my MPG reads at infinity. If I coast out of gear I can go slightly further but then engine is burning fuel to keep going and MPG depends on speed, can be between 40-65.
I'm interested in working out whether its better to accelerate more strongly uphill that try to cruise for longer at a lower throttle, and also whether its better to be in a lower gear (less effort but more RPM) vs a higher one. My experimentation so far has not been conclusive.
(All figures Imperial)  |
It's better to not accelerate uphill at all, at least the way I see it, unless you can't reach your BSFC peak on a flat. Accelerating, regardless of terrain, should be done in the BSFC peak of your engine setup, for the most efficient fuel use per HP production.
In my case, I try my damned hardest not to accelerate on hills at all. Takes too much pedal, and I drive an auto.
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