Vauxhall Astra fuel consumtion high

Car: Vauxhall Astra
Variant: 1.9 CDTI auto
Model Year: 2008
Categories: Engine & Drivetrain
car has developed a fault with fuel consumption
after a run on motorway when taking foot off acc pedal fuel will not go above 30mpg and if I accelarate it goes way down
If I go into neutral it sits at 1.1 gallon an hour instead of 0.2
Car been to garage who have charged me fo a forced Re-Gen but after less than 100miles it is same again.
Posted: Dec 28, 2010 (13 years ago)
i know trip computer is telling you what mpg you are getting but have you worked out phyically what mpg you are getting as computer could be wrong
Posted Dec 28, 2010 (13 years ago)
Is car not still covered by warranty ?
Posted Dec 28, 2010 (13 years ago)

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