Mad85 Posted September 22, 2015 Share Posted September 22, 2015 Hey all, I have a three year old Ford Fiesta 1.4TDCI with around 12000km on the clock. Recently we are getting really bad fuel economy - around 7.4lt/100km!! Me and my wife are not the most economical drivers out there but even we could get an easy 5.5lt/100km before. What could be the cause of this? Would a can of BG244 or Fort Advanced Diesel Treatment help? thanks! Mark Quote Link to comment Share on other sites More sharing options...
MONDEO TXS 2.2 Posted September 22, 2015 Share Posted September 22, 2015 Yes it would - when was the fuel filter last changed ? Quote Link to comment Share on other sites More sharing options...
Randoms Posted September 22, 2015 Share Posted September 22, 2015 I've used BG244 twice now & saw a improvement both times. As above could try changing the fuel & air filter to see if this helps (cheap enough). Quote Link to comment Share on other sites More sharing options...
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