Classic Saab 9-5 (1997 - 2009)
Hi guys!
My car just passed MOT but my happiness did not last long - I noticed an increase in petrol consumption in my 9-5 Aero Estate Auto.
Steady 70 mph on a motorway with cruise control on used to be around 39 mpg (7.2 l/100km) but now it's around 32-33 MPG (8.6 l/100km).
Firstly I blamed...