My Isuzu is very heavy on fuel, 7.5km/L. What can the problem be and What can I do about it?
Jun 27, 2008 at 3:33 AM
Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
Advertisement
KHLOW2008
CAR REPAIR CONTRIBUTOR
41,814 POSTS
Hi JOHAN111,
Fuel consumption is very subjective, it varies with driving condition.
Possible causes.
1. Engine out of tune, ie ignition timing, crank and cam out of sync, idling speed too high.