mpg issues on ed30

[benje]

hi, having to travel a little further to work and is costing in fuel now, mpg in my 8 mile journey to work never seems to be more than 22mpg even if i change before 2k rpm driving like a vicar, when the car sits in traffic at the lights it literally plumets down in 17-18 range and it is just on tickover, anyone had issues or is the mpg guage just miles out, i have lowline by the way

[MAT ED30]

what fuel u running ?

[Janner_Sy]

first of all check your tyre pressures, my fuel economy seemed o drop, and it turned out to be the tyres on 27psi instead of 31psi.  fuel economy jumped up about 5mpg average after that.

alternatively could b a faulty PCV.  My uel economy was poor prior to me getting the BSH stage 2 catch can

[MAT ED30]

u should only be running car on super unleaded on the ed30 / gti engine

[benje]

what fuel u running ?

pretty much bp ultimate or optimax, just put some tesco 99 in tho, my trip on 1 is saying 22.4 and on setting 2 23.6

[benje]

first of all check your tyre pressures, my fuel economy seemed o drop, and it turned out to be the tyres on 27psi instead of 31psi.  fuel economy jumped up about 5mpg average after that.

alternatively could b a faulty PCV.  My uel economy was poor prior to me getting the BSH stage 2 catch can

i just went out and checked my tyre pressures as i havent since i had wheels done fewe months ago, pressures were at over 40 psi, could this be a reason, i have let them down to 32 now, also thought of fitting the upgrade version dump valve or pcv thing, will this help

[CarrG]

Short journeys are killer on mpg tho. My daily round trip is 5miles starting/stoping 4 times, but i take the toddler or i'd ride. I only manage 20mpg.

[paulk]

more psi in the tyre better the mpg so i doubt thats the fault.....

[Janner_Sy]

40 psi seems a tad high IMO, my car manual states 31mpg front and rear on a heavy load, and my car is heavier as standard than the GTI.  it also wouldnt cause the low MPG, if anything the opposite.

PCV could be at fault. 

is your car mapped??

[benje]

40 psi seems a tad high IMO, my car manual states 31mpg front and rear on a heavy load, and my car is heavier as standard than the GTI.  it also wouldnt cause the low MPG, if anything the opposite.

PCV could be at fault. 

is your car mapped??

no standard, seems a little slower tham used to be but it could be me getting used to it, does release an air whoosh noice when you let of the gas, sometimes it doesnt pull like it remember

[Saint Steve]

Sounds about right your mpg, short journeys will only get you around 25mpg. Running Air con will increase this also.

If you live in a rural area wth little stop start hold ups then you would get nearer 30mpg.

Ive owned 3 Mk5 GTi's , All have been no better then 27 average. I live in and around a city. Lots of traffic lights per square mile.

Warmer conditions improves the mpg slightly, and tends to drink slightly more on colder days with the combo of short journeys. The FSi engine will not function ecomanically on short trips.

[robern2]

My journey to work is 2.7 miles, mine never drops below 26 mpg (runs on vpower)

[Saint Steve]

^^^ whats your average speed on that short journey though??

To have 27mpg at 2.7 miles, you cant have many stop starts chap.

[robern2]

Its 26mpg, avarage speed is probably around 35-40

[MAT ED30]

do u ever drive it hard ? it might need a good hard drive