I just cleaned my k&n and now I'm doing 37 mpg

I checked mine on the way to work yesterday morning. Kinda wish I didn't 25.2mpg

How many MPG does the K&N improve this by roughly ?

Im thinking of finally getting one after Xmas ?

I don't think a huge amount Banksy, it's more for the tune and throttle response. Where can I get that app Rybo?

banksy, i reckon around a extra 3mpg around town, and maybe 8mpg on a run.

anyway, i reset mine the other day and around twon i was averaging 29.6mpg. then i changed my power steering fluid and for the few minutes its takes to do the job, just idling my average mpg went down to 24.6.
so i've come to the conclusion not to believe what it says.

I don't think the K&N gives you that kind of MPG gains Alan. That seems very high indeed.

yeh i reckon tom, the extra 3mpg is'nt a lot really if you drive steadily, you may lose this if you like to hear that induction roar.lol

39.6 bloody hell :O you've the 200 kit too right?? is that like tons of motorway driving or something?

Krawl, just type it in on the android market. Fuel log.

My K&N didn't change my MPG at all, it's still low cos I'm greedy with the noise of it and my Piper cat back. Alan is suggesting the K&N raises MPG by 8 on a drive which is crazy! So lets say on average someone is getting 34 MPG from a standard ST. They equip the K&N and they're now getting 42MPG... Hmmm really? I'm sure Ford would have done something if that was the case as this would have increased sales tenfold!

I think he means in context of how many miles you are getting
I would certainly say I drive my ST much more aggressively than I did in the first few months of owning it and so theoretically my mpg should have decreased but the only change I made between these 2 periods was the K&N and i easily went from high 20's to mid 30's
So it makes sense the k&n would give you easily 5mpg extra on an average trip in my opinion

I've had 49.7 mpg on the motorway before with my mountune cais which for those that don't know is basically a k&n in a box. It was 5th gear 50mph for an insane amount of miles though stupid m25 roadworks but if I stick around 70mph I can get it to around 33mpg which isn too bad

You have to remember the less restrictive you make your entry and exit into the engine the less the engine will work to produce power.

But at the same time under full throttle will work twice as fast and harder producing more power.

my average mpg is 39.00 better then my run around lol