Hi again.

Just a follow-up to my post above:

I got info from Trevor that the K-factors indeed are different: 680 for US GLS and 180 for litres.

1 US GLS is 3,7854 litres so if I multiply 180 with that, I get 681,372 ......Voila!
So I guess the 3500 by itself changes the K-factor automaticly when I switch beetween litres and US GLS. What a smart little machine!

Now, why dind't I think of that?? yeah; I know... I'm not smart enough..

Anyway; now, with my mind at ease, I can adjust the K-factor and get the FF-readings to be as accurate as the tank-readings.
You gotta love these smart EFIS'es...
__________________