Hi guys. Any advice will be appreciated.

I've recently purchased a 2009 MY08 ST Patrol with 120k on the odometer.

I've done a test on fuel efficiency for town driving only and got 16.6L/100 (17MPG)

I was expecting to get around 13L/100 so makes me believe there could be an issue somewhere.

The vehicle is stock standard with no accessories using standard size road tyres. I gave it an oil change as soon as I got it home and replaced oil and air filters.

I have driving it around trying to save on fuel, so no heavy foot and still got the poor results.

I have been driving around with the O/D on which was stated in the manual. Not sure if this would help town driving if it were switched off.

I have used a fuel conditioner on each fill up.

After a highway trip it returned nearly 14L/100.

Is there anything I could do/ or check to help improve efficiency? Could the EGR valve not be functioning properly and affecting economy?

Kind regards,


Aaron.