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 Posted: Tue Jan 25, 2011 5:22 pm |
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Joined: Dec 04, 2010
Posts: 86
Trade Rating: 0
Location: Norfolk
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Hi all,
I've got a 99 V plate 1.4 LX that I bought already modified which included a lovely 4 inch slash cut backbox on it, which I later found out was a contributing factor to my terrible MPG, here's my mathematic calculations 
1.4 with 4" aftermarket exhaust - 23MPG
1.4 with standard OEM backbox - 34MPG
Is the standard box still a poor figure? It doesn't sound amazing to me personally! I was hoping for late 30's early 40's!
The car is probably due a service which i'll get round to doing.
The 34MPG is a mix of dual carriageway driving and back roads, I do have quite a heavy right foot though so I know this would be another contributing factor.
Cheers
Jord 
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Posted: Tue Jan 25, 2011 5:48 pm |
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Joined: Feb 07, 2010
Posts: 1495
Trade Rating: +3
Location: Waiting for the tugboats to push me into port (Whitehaven)
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i think thats about right as i don't think the 1.4 could see the other side of the 40's lol
could be wrong though 
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Posted: Tue Jan 25, 2011 6:02 pm |
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Joined: Jan 17, 2011
Posts: 83
Trade Rating: 0
Location: Belfast, Northern Ireland
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idk wat my mpg is but i only get 50miles outta a quarter of a tank round town but when i do big motor way runs and keep her in 5th she hardly drinks pertrol at all i get about 200 miles mayb abit more if its just mainly motor way driving
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Posted: Tue Jan 25, 2011 6:40 pm |
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Joined: Jan 25, 2011
Posts: 163
Trade Rating: +5
Location: Scunthorpe
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The 1.4's can do around 40-44mpg if you have a light right foot
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