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Author Topic: MK5 GTI stage1 poor mpg!  (Read 13521 times)

Offline alexperkins

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Re: MK5 GTI stage1 poor mpg!
« Reply #15 on: October 22, 2011, 04:42:43 pm »
crankcase ventilation - takes oil vapour and puts it back into the throttle body so it can be burnt off
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Offline baldwined30

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Re: MK5 GTI stage1 poor mpg!
« Reply #16 on: October 22, 2011, 04:44:11 pm »
Do I NEED one???
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Offline alexperkins

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Re: MK5 GTI stage1 poor mpg!
« Reply #17 on: October 22, 2011, 04:45:11 pm »
Well, they come fitted with one from factory

Personally, I wouldn't remove it and blank it off like some people do. It can increase crankcase pressure, and can reduce performance/mpg
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Offline baldwined30

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Re: MK5 GTI stage1 poor mpg!
« Reply #18 on: October 22, 2011, 04:46:44 pm »
Mines running ok, ill leave it!!! Spent enough as it is!!!
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Offline alexperkins

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Re: MK5 GTI stage1 poor mpg!
« Reply #19 on: October 22, 2011, 04:49:18 pm »
On some it can cause problems - not everyone has had it perfect mate!

A new genuine PCV has revised parts and this is generally the best way to cure any PCV related issue.
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Offline alackofspeed

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Re: MK5 GTI stage1 poor mpg!
« Reply #20 on: October 22, 2011, 04:55:05 pm »
I can only relay the comments of the chap I spoke to. Just a curious coincidence I thought I'd mention.

As for MPG. My DSG BWA Stg 1, pretty reliably manages 24.5mpg on a cross-country run with 1200kg of trailer on the back, boot full of petrol and other associated track-day cack. If I saw that sort of figure at any other time, I'd wonder what was broken. Maybe I drive too slowly?

« Last Edit: October 22, 2011, 05:18:49 pm by alackofspeed »
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