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speed that = cheapest driving

indebtbigtime · 2008-06-14 09:08:12

Hi I know this is complicated by numerous factors, but in general whats the most economical speed to drive if I drive at 90mph on a motorway (not that I would :)), i get there much quicker than driving at 60 and consume fuel for less time, but I am guessing this is offset by extra engine effort? I drive a small MPV thanks

Comments

moonrakerz Posts: 8,650 Forumite

15 June 2008 at 8:25PM

Cardew wrote: »

Not certain of your point here moonrakerz:

A one power car will do 100mph, it will take 8 times as much power to get the intercity train to do 200mph.

So even 8 power cars will not achieve 200mph, given the extra weight of the 7 cars.

It was just a simple point to illustrate what effect doubling (or halving) the horse power has.

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