3.5 v6 2005 holden rodeo.

Redbook says 76lt tank and about 13km/100kms - brand new

We (briefly) owned a 2003 dual cab model which had towed a caravan around Australia twice and it was using about 15 on the highway and 18-22 around town

HTH :)

I've got a 2004 3.5 v6 rodeo dual cab
I average approx 15 litres per 100 km on petrol and 17 per 100 km on LPG.
I have a dual fuel set up
I service it regularly every 7 to 10 k
Have just clocked over 200 k and very happy, timing belt at 160k and I also have a 110 litre long range fuel tank (petrol) and a 80 litre LPG tank.
may have to look into a new O2 sensor

For some reason the rodeos seem to use more fuel then Jacks but their are a lot of variables. Autos seem to av close to 100ks less per tank, and the older lighter 98/99 models with free wheeling hubs would get down to 11/100 with out much trouble. My heavier 03 Se gets about 400ks to a tank around town and 500 on a trip(I fill with about 15to 20l left), while my sons older 99se will add 40 to 50ks to theses figures.
But they are a very reliable long lasting motor with quite a few around with over 400000ks untouched.
Cheers Pete