I don'k know if this is interesting, but here is the list of fuel consumption figures for a couple of yerrs use of my 450 (now Mercules!)
Litres / 100 k and MPG from 1997 to 2000+
Date
970312 (lhs lower ball joint-$120, rear suspension pump-$275, **recon steering box-$450, steering shock-$100, front disc pads-$110, autotrans service $120)
970315 (New front windscreen-$290, new front & rear windscreen rubbers-$170, fit -$120)
970322 14.11...