not true^ an engine can compinsate air for fuel.

so far, half of my study goes like this.

stay on asmuch highway as possible. and shift at 2.5 grand.. i only got 33 mpg. so we will see what will happen when i shift at 3k

 

I'm having the same problem. My 98 EK 3dr hatch is drinking fuel at the minute (but that may be due to the way I drive it!). Seems abnormally thirsty for a 1.4ltr, but I suppose its simply down to the lack of torque - meaning it takes higher RPM to get up to speed. Higher RPM = more fuel usage (in most cases).

I'm running some Redex injector cleaner at the minute, and it seems to have made a world of difference in terms of engine response and MPG. I'd recommend to anyone who is trying to increase MPG that they try this stuff or similar additive. Well worth the £6...

As others have said though, higher RPMs don't always mean less MPG. The critical thing with these engines seems to be the amount of load you put on it. Pull away from a junction in 2nd, and the car will rev cleanly and quickly up to speed. Try it in 3rd, and you are putting too much load on the engine. The natural thing to do is to put your foot to the floor, which will use way more fuel and not get you anywhere.

A free-flowing exhaust and intake should make the difference. My up and coming mods include a full stainless set of headers and cat-back exhaust. I'll let you guys know if there are any immediate differences.

=chris=

 

I/H/E on you're car will make a difference in gas milage, so long as the increase power and torque don't make you drive it like a madman.

 

a turbo increces your engines MPGs because it increces efficiency. anything that increces efficiency will give you better gas milage

and why doubt 57? its completely possible on a turbod car. especially a honda.