Just incase anyone tries this stupid trick !
Had the ScanGauge now for about 6 months, excellent piece of kit !. After about 4 full tanks it gets pretty accurate.
I usually wait till about 1/4 tank of fuel then fill to the brim and do a "fill up" on the Scangauge. However, last Tuesday was a bit different. I had let my tank get a bit low, expecting to fill up shortly...which never happened!.
Anyway, i drove past a petrol station and thought i'd better put some petrol in, but as it was 92.9p/litre i only put £5 worth in (with the view to filling up to the brim when i reached home, as it's only 88.9p a litre there).
When i put the £5 worth of fuel in i did the stupid thing of doing a "fill-up" on the ScanGauge and the readings went mental ! (as i hadn't really done a full fill up......realised that AFTER i had reset it!).
The fuel used went up to 555 gallons on a 10 mile trip !!!).
Anyway, i thought it would correct itself on the next full fill-up.
Yesterday i went to do a fill-up and when i went to enter the gallons i had put in it said 555gallons !!! - and i had to sit there and press the down key 5000 times (as it goes in 0.1 increments) !!!!!! to get it to say 9.8 gallons !!!, readings were then still rubbish.
I have now had to do a reset and start again !, now i have to wait a couple of months for the accuracy to even out !!!! hmmmm.
My stupid fault !!
Moral of the story: don't do a "fill-up" on the SG unless you are really filling to the brim !
Andy