Mitch_lx

Hey everybody :) just wondering if anyone here has tuned their new fiestas to run fuel like bp ultimate (98)
ive heard in certain cars like one of my friends 1998 civic that the ecu tunes itself back to standard a couple days after having timing advance for better fuel.
Is it the same with the new fiesta or is it possible to advance timing say 3 degrees and have the ECU keep it at that.
please let me know :) thanks

Pieoter

The ecus are tuned to run 95 ron fuel already. So tuning it to run 98 ron petrol without any other mods will have minimal effect.

But once you get some mods you can get the ecu reflashed and get some nice gains.

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2004 Ford Fiesta Zetec. Colorado Red . Mods - BMC air filter, Xenon Blue headlights, Slightly modded intake. 58.3 FWKW.