Since I bought my Lorrie I’ve been monitoring its fuel consumption it always gave me between 5.4km/l and 6.4km/l now all of sudden on the last 2 tanks between 4km/l and 4.2km/l



When I got it I immediately fitted Maxxis bighorns 265/75/16 I had 275/70/16 on before. On the last 2 tanks I had a roof rack on.
Is there something wrong with the Lorrie or is it normal consumption with a roof rack it wasn’t loaded heavily.
Its up for its next service maybe it just needs a good service, what could maybe cause this sudden heavy fuel consumption?
What can be done if any to get better consumption (I was thinking of a good dino tuning after its service? :idea: )
Any advice would be nice.


A.J.