Poor fuel economy

350-400 miles of fast A+B road driving, and town driving, from a 38 litre tank here :)
(Fiesta 1.8td)
 
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chopchop said:
well it depends how the ecu reads the temp.

the thermostat being stuck open would make the car take longer to heat up, by maybe 5-10mins longer.
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In this weather it's quite likely to never warm up. The thermostat on my Honda has stuck open this week (changing it today) and it barely moves off cold on a 30 mile journey. Fuel economy has suffered considerably as would be expected. This is also not good for the cat or for engine wear in general.

Matteh, you should have a good 5 litres left when the light comes on, so 220miles in 35 litres (7.8 gallons) is about 28mpg. That's not horrendous for a 1.8, but certainly lower than expected which is easily explained by the engine running cold.
 
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when my light comes on, find a petrol station asap! i've run out before because of it :(

ive just gone for a hoon 'round and the temp guage seems to be going up again, so hopefully it was just the overfilled coolant.

although, i didnt have to drain anything, it was already half empty :( :(
 
MrMatteh said:
when my light comes on, find a petrol station asap! i've run out before because of it :(

ive just gone for a hoon 'round and the temp guage seems to be going up again, so hopefully it was just the overfilled coolant.

although, i didnt have to drain anything, it was already half empty :( :(
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I'll show you real gas guzzling next week ;).
 
Nozzer said:
I'll show you real gas guzzling next week ;).
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:D :D

i was in fifth gear :p

the temp seems a bit better now, will keep an eye on it.

edit: just spent the afternoon washing it, looks so shiney just don't tell my brother i used his autoglym and meguires :p
 
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