Our 2004 Holden Rodeo cab-chassis with a 3.5-litre V6 uses more fuel than our VS Commodore wagon. On average, unloaded it gives 13.5-14.0 litres/100km. How can we improve it?
The V6 Rodeo has a reputation as a guzzler and the figures you quote are pretty normal. Fit a dual-fuel system and run it on LPG. Holden has a factory-approved kit that can be fitted by your dealer.