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Old 10-01-2011, 05:26 AM   #4 (permalink)
Arragonis
The PRC.
 
Join Date: Oct 2009
Location: Elsewhere.
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Metro - thanks, I'll check the speed. George (also a little 3 banger BTW ) has a collar in the filler neck to stop people putting in diesel by mistake - diesel nozzles are larger than petrol ones here and George was also available in Diesel for a while. I fill up to the top of that collar each time so I know the fillups are consistent. Not always the same pump though, but I usually go to the same place and it is all flat.

Its just if I take the miles from the ODO and divide it by the gallons the SG2 says I have used on Fillup (I don't confirm at that point, I just take the reading) it comes to 70+ MPG. But no trip average on the SG2 has been over 65.

So the same instrument is giving me two different readings.

When I do fillup I found it was 3-5% out and I adjusted it halfway each time. I reset it last time though because it was suggesting I was getting 100+ MPG trips which was impossible as the first bar on the fuel gauge went out at ~ 100 miles - other owner experience ranges from 100 to 150 miles for the first bar.
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