My handy work, Timing Graph

I Fitted My Computer system to a my car mid Dec 2005.

Have been tuning up my engine for some time now.

See Attachments, timing curve as of 3/1/2006

Did a run last week approx 330 Km and used approx 18 L to 23 L of fuel, keeping to the speed limits (110 Km/h) in overdrive and mostly the roads where flat, thats somewhere in the range of 40 to 50 Mpg.

I couldn't fill the tank again so its a rough guess,

the gauge was just under the 3/4 mark when we got back, its a 55 L tank.

another test (overloaded).

While towing a car trailer with car, i was able to get 12.4 Mpg,

Thats pretty low out of a 4 cylinder engine.