Yup I've noticed a couple of similar issues, especially when the fills were small or partial.
The in tank sensor only seems to update when it crosses certain set thresholds.
I suspect it uses fuel consumption numbers from the ECU when running along with a fairly agricultural in tank sensor to try to give a "measured" discharge as the fuel is used and just the agricultural sensor for fill ups.
That would certainly explain what you saw when borrowed some of the Monsters fuel.
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Last edited by BigOz; 22-05-2019 at 04:11 PM..
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