Well, my best is 67mpg, but it takes few tanks to get a true trend, also I have still some mods to be made and old ones need improving too.
With bit more mods, I think that I could beat that 70mpg, but I doubt that 100mpg will be possible at all, not with this motor, more modern HDi motor would drink lot less and with that 100mpg would be possible, but with our laws such swap would be really a PITA, also car is going to be scrapped in a year as bodyshell is rusted and gearbox is shot.
With such great mods as there are in aerocivic, it should be possible to get lot better FE as my mods are not too great quality in aero terms, so there is room for improvement, I have not beaten even 70mpg and I have quite lot of visible mods.
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