2008 Fiat Doblo Problems

Hi I have a fiat doblo 2008 new battery 4months ago. Immobiliser light is on. Had the AA out to it he thinks its the chip in my key that's gone faulty, spoken to a auto locksmith and he said he doubts its the chip. Had all fuses checked wir...

car seems to run fine but can only achieve around 35mpg. doing mostly 30 mile commute each way, every day, using motorway. oddly, i can average 48mpg or so just around town, but as soon as i get on the open road, it plummets. looking at the...