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-   -   invest in a K&N air filter (

thesheet 03-12-2014 09:45 PM

invest in a K&N air filter
Based on my calculations, my '05 4 cyl altima got 8% better fuel economy after putting it in.


LeanBurn 03-13-2014 12:11 PM

Highly unlikely. There are other factors that are always in play, that are seldom accounted for. The throttle plate is the point of largest restriction in flow.

sarguy01 03-13-2014 12:25 PM

Can we see your calculations? What was the before and after testing??

I should have tested mine ABA before I threw away the paper filter. I grabbed a K&N for the savings, not the claimed mileage or hp increase. I already own it, so I am keeping it, but I probably would have passed on it if I know what I know now.

redpoint5 03-13-2014 01:28 PM

This can go straight to the unicorn corral.

Frank Lee 03-13-2014 01:41 PM

Should be "fullofsheet". :rolleyes:

cbaber 03-13-2014 05:35 PM

Are the folks at K&N so desperate they resort to spamming forums? I guess these are the tasks they assign to the marketing interns.

Cobb 03-13-2014 06:40 PM

8%? Imagine the ROI on that. :eek:

user removed 03-13-2014 08:12 PM

Maybe he drove the car 20k miles down a dirt road with the OE filter, drafting someone.:p


user removed 03-13-2014 08:14 PM

I had an -10% change in mileage today, had to drive home in a 25 MPH headwind.


mcrews 03-13-2014 08:19 PM


Originally Posted by Frank Lee (Post 415036)
Should be "fullofsheet". :rolleyes:


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