January 28, 201411 yr Hello all. First timer here...I have had my 2004 1.8 petrol for new and its been a great family car. However I have notice my fuel economy is getting very poor , its now at 27.4 !!! I don't drive fast and but I only cover around 20 miles a day to and from work. The car is in very good nick and has covered 82000 miles. Please help if anyone has any ideas on how I can resolve this issues. Cheers jason
January 29, 201411 yr What sort of fuel economy were you getting previously? Have you tried any fuel system treatments?
January 29, 201411 yr Author Hi, I was getting around 38mpg and added fuel treatment last night. I have only covered 15 miles since I've added it so not seen a benefit as yet. Cheers Jason
February 3, 201411 yr Does seem like quite a drop. Let us know how you get on with the fuel system cleaner. Could just be a dirty sensor or something causing it to run rich.
February 3, 201411 yr Author I have added the cleaner, replaced the plug and it went up to 29.7mpg! I have also added some CAt clean and I'm going to give the car a good run on Wednesday morning. Hopefully this will sort it!!! Thanks for your input and I will feed back on Thursday. Cheers.
February 11, 201411 yr Cataclean is pretty good stuff. Hopefully this will help you out! At least it's gone up a bit so far!
February 11, 201411 yr Author 29.2 so far . that's after cat cleaner, new plugs , fuel cleaner and I have now cleaned the the MAF sensor. Not sure what else I can do.....Thanks
February 14, 201411 yr Just a thought but lambda/O2 sensors can sometimes cause cars to run too 'rich' so may be worth a look!
February 19, 201411 yr Author Being done on Saturday and I'll feed back then. I have gone up to 31 mpg but that's with some careful driving. Cheers Jason.
February 23, 201411 yr Author Had it plugged in today and no faults found! Lost as for what to try not.
February 26, 201411 yr I'm a bit stumped too to be honest! Did you ask the garage if they had any suggestions as to why the economy had dropped so significantly?
February 26, 201411 yr Author He said the clutch is on its way out but other then that nothing. Its due an MOT next month so I'll take it somewhere else. Thanks for your interest and suggestion. Jason
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