cupra 2.0 8v average 20mpg.

vngtx

Guest
is 20mpg normal?? ive had it upto 26 on motorway at 80mph for 15 miles. but it seems to be going down by the day. lambda sensor has been cut off. but it still shudnt affect it that much surely?
 

vngtx

Guest
amatuer decat exhaust.i hope my new cat and sensor arrives soon then. its costing me a fortune to run!!
 

suj

Wheel Connoisseur
Jan 1, 2009
5,808
1
Birmingham
26mpg on motorway? wtf? i got 36.5mpg doing 70-77mph today
get about 29mpg around town, and i got a 16v
 

vngtx

Guest
26mpg on motorway? wtf? i got 36.5mpg doing 70-77mph today
get about 29mpg around town, and i got a 16v

i was going a little faster than that :redface: plus no lambda sensor. could that be making it judder and misfire at 2000rpm?
 

vngtx

Guest
most likely mate
get it sorted, as i thought the 8v was much better on fuel then 16v?

im waiting for new cat and lambda to arrive (65 quid instead of 231 + 70 from japseye) but havent managed to find downpipe yet.
 
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vngtx

Guest
may get complete stainless steel manifold and find out wats inside of it making that rattling noise :censored:
 

orangemuffin

i love you all.......
Sep 24, 2008
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0
yesterday
8v mpg is a lottery....

motorway i can get 43 mpg plus....on my 8 miles trip to work i am lucky to see 28.

tyre pressure, excess car weight, dirty TB, the need of a service.......anything could effect it.
 

vngtx

Guest
had tyres inflated before i set off and it gave me an extra 8mpg but its still only 28 :( i think ill have to remove induction kit.
 

orangemuffin

i love you all.......
Sep 24, 2008
1,747
0
yesterday
i wouldnt....increased air flow is suppsoed to help mpg.

I have a open K&N cone on mine not to mention a full SS exhaust system.

When was your last oil change ?
 

vngtx

Guest
only bought it last friday and got no service history with it. needs coolant filling up. oil filter looks at least 6 month old. high mileage too.
 

suj

Wheel Connoisseur
Jan 1, 2009
5,808
1
Birmingham
i wouldnt....increased air flow is suppsoed to help mpg.

I have a open K&N cone on mine not to mention a full SS exhaust system.

When was your last oil change ?

increased air flow won't directly improve MPG, will improve the combustion mixture (oxygen) but not in the same way a supercharger/turbo will, so in most cases it makes it worse, my exhaust seriously ruins my MPG!
 

vngtx

Guest
induction filter could do with a clean. covered in grit since theres no wheel arch where it sticks through. got new bits today tho :D new wheel arch, headlight, indicator, door latches, gearstick gator, fuse box cover. all for 45 quid :)
 

vngtx

Guest
they wanted to charge 55 quid for central locking vacuum pump :( im gonna try motorhog.co.uk for one cheaper.
 
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