Trying To Get The Best Fuel Economy- What Have I Missed?

[mad082]

Don't bother spending too much chasing better fuel economy as it's counter productive. Especially since you haven't worked out your actual economy. If you spend a few hundred dollars and then only gain 0.5l/100kms then it will take a hell of a long time to recoup your losses unless you do a lot of driving.

Driving style plays a major part in fuel economy, as does conditions. Lots of short trips or traffic driving uses more fuel.

Some things to do/try are:

Make sure your tyre pressure is good

Use less throttle. It's not all about rpm, but throttle %. Too much throttle takes the ecu out of closed loop and uses richer mapping.

Think ahead. If you drive a lot in stop start traffic then use your head. No point getting up to 60kmh if you can see the traffic stopped up ahead and are only going to have to slow down again.

Aircon over windows. Having the aircon on is better than having the windows down (despite the poor testing mythbusters did), since the aircon cuts in and out. At low speed it doesn't make much difference, but at higher speeds it does.

And don't sit there for minutes idling to let your car come up to temp. It's not needed.