Just switched to Honda Stream 1.8 5AT for 4 months,
it has a build-in FE gauge, normally I've got AVG 8.8~9.2 Litre per 100km.
But recently, after it parked for 3 weeks, now I can only get 10.0~10.5
in AVG.
It has oil/filter changed, tyre pressure checked, bettery reset,
everythings are fine.
Any suggestion of what to look for ?
Thanks.
The gas may have gummed up the injectors while it was sitting. I would try running some fuel injector cleaner through it. Old gas also doesn't have the power that new gas has.