Date: Sat, 01 May 2004 19:33:00 +0100
From: Colin Stamp <colinnospamp.plus.com>
Subject: Re: Fuel consumption figures computer wrong


On 1 May 2004 13:31:50 GMT, Dave Hinz <davehinznospamcop.net> wrote: >On Sat, 01 May 2004 09:27:46 +0100, Colin Stamp <colinnospamp.plus.com> wrote: >> On Sat, 1 May 2004 07:56:41 +0100, David Taylor <djtaylornospamoot.com> >> wrote: >> >>>Nothing wrong with doing that except that a) you don't know the accuracy >>>of the pump and b) can't guarantee that the fuel cut off works exactly >>>the same the next time so discrepancies in the filling aren't being >>>taken into account. >> >> Pumps should be reasonably reliable - I'm pretty sure they are legally >> regulated. > >For volume, yes. But switching off when they feel the tank is full? >Probably not, which is what I think David was getting at. That's why I said it wouldn't be perfect, but more than 6 litres is still an awful lot to be out by. It'd probably fill up the tank filler pipe several times over! > >> It won't be perfect, but you'd have to be going some to get >> it wrong by over 6 litres in a tankful. Adding up all the >> uncertainties I'd expect well under 5%. > >It's watched in the US, but people have been busted for it. Couple of >years ago, one of those investagative TV programs found that some stations >in large urban areas were playing with the numbers on the pumps, which was >of course followed by industry people saying it can't be done ;) When CB radio first came out over here, people discovered that some of the illegal extra high powered transmitters would scramble the brains of electronic pumps. They'd complain at the till if the resulting silly reading was high... Colin.

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