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I did that day :yes:, but normally 30 is good, can get to 33 or 35 on a steady flowing run.

I used to venture your way a bit to, went to uni in Glamorgan and used to blast the motorbikes your way on weekends, some lovely roads.

Once did a cycling training course at Hereford for some army lads, was a blinder, especially the night in bushwackers, but I'm going back a fair bit lol. 

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Having read the earlier parts of this thread, I have spent the past week (around 700 miles) driving in PWR mode. Presumably, it uses the battery a bit more when accelerating. The upshot is that I am getting 2-3 mpg more than I was used to on the same runs.

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12 minutes ago, Mike Hartland said:

Having read the earlier parts of this thread, I have spent the past week (around 700 miles) driving in PWR mode. Presumably, it uses the battery a bit more when accelerating. The upshot is that I am getting 2-3 mpg more than I was used to on the same runs.

Interesting, doesn't the manual say PWR is primarily for mountainous roads?

Have you tried a comparison with the Sport mode too?

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Wonder if the principle of getting to speed faster, using more fuel, versus more time off the gas using less fuel.

Either that or as it a bit warmer, tires bit harder and thus less rolling resistance, or wind speed lol

Need someone with access to track or test ground to do some controlled testing.

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Having had a Prius, and belonging to the Prius forum it was proved long ago that accelerating briskly up to speed, and then easing off got better MPG than gently gathering speed over a longer distance. It is quite possible this principle also applies to the GS450H.

John. 

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I concur John, thus must blast off at every opportunity...... I'm protecting the environment offer! :yes:

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