Mine averages about 7.1km/L which is about 14L/100. 9.4 is about 10.7L/100. My mate has the same SR5 as mine but D4D and 4spd auto and his averages 11.9L/100 but it like mine has had correct size tyres but on so the speedo reads right. His does a mix of city and highway like mine does, but he said it gets down to around 10 highway. Mine will go to about 10.5-11 highway. Mine used to show about 7.5-7.6 with the 15" tyres on it and the speedo read wrong.

Afaik the 100 series Landcruiser 4.7L is all alloy as is the Lexus 5.7L, but neither fits as they are too tall (already looked into it). An LS1 or LS2 fits easily but almost impossible to get it to talk with the A750F auto, best way is to fit a whole LS2 and 6L80E 6spd auto.