I stay off the major highways with it, it consumes way too much at 100+. Mostly a back roads discovery car, going to work the long way, going out on weekends and such. Hardly ever get the chance to use it.
The reflash has no effect on FE under the same conditions, unless it removes emissions features such as EGR, then it will take a tiny bit more (longer warm up)
Also a known problem on them is the oil pump chain drive gears wear out fast on certain engines, no idea the cause as it is not universal to all engines. I am guessing lack of proper oil changes. When I wrenched on them it was common to see them horrible over due for service (twice the factory km interval). People who bought them were not generally car types and over drove them and under serviced them. The poor little engine works hard, anytime I go up to the Laurentians with mine it is near full throttle on several hill climbs not by choice, but to make it over!
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