My 2010 Santa Fe has 6 speed automatic and returns very good hwy milage, but the tranny kicks down even at the slightest incline or strong headwind gusts. My 2007 Fit AT holds the 5th gear much better. That being said, has anyone tried replacing OEM airfilter with aftermarket like K&N and experienced meaningful improvement in performance or economy?

 

The ECU will correct for any changes you make to the intake...no gain without HONDATA

 

I got 42 mpg on my last tank.

That tank consisted of driving through downtown Chicago traffic and driving down 290 at ~80 mph.

Come at me bros.

 

Right, the computer is programmed to deliver optimal mix of air and fuel. But then, following this logic, it won't matter if one has dirty and clogged air filter, ECU will adjust the fuel delivery as well. Something does not compute here

 

Nooo....You can lose hp/tq just not gain it. The ECU doesnt know what to do with an intake.

 

No, it just sounds better

 

Right!!!!!

 

How's that? Do you mean the engine sound or the exhaust? I assume you tried one... is it an "upgrade" worth the money? Here in Toronto I can buy Fram filter for 12 bucks, but K&N will cost me over $50.

 

If you want a drop in filter stay away from K&N just get an AEM dryflow. You can shake out the dirt and wash it without having to oil it after.

 

Thanks mate

 

 

Ditto that.

 

Really simple. EPA ratings are not that accurate. Honda Fit's got shortchanged and real mileage is better than EPA says it is. Perfect example is this Car and Driver comparo.

2011 Ford Fiesta vs. 2010 Honda Fit, 2011 Mazda 2 – Comparison Test – Car and Driver

The car with the best EPA combined (Ford Fiesta, 34mpg) tested worst in MPG at 32 and the car with the worst EPA combined (Honda Fit, 29) tested best at 34.

 

The government is pressuring the auto makers to keep the mpg down because oil companies provide gas and they use that tax. If everybody started getting 100mpg, oil companies would be pissed

 

What is your reasoning behind this?

 

Internet fearmongering about K&N oil messing up sensors.

Don't over oil it like a 'tard and you'll be fine.

 

thats what i figured. I've put a K&n filter in every one of my cars so far. I will continue to do so because im not an idiot sensationalist

 

Would you rather

1. Clean filter
2. wait for filter to dry
3. oil filter
4. wait for oil to soak into all pleats
5. reinstall filter

or

1. Clean filter
2. wait for filter to dry
3. reinstall filter

 

^^^ That.

There's nothing idiotic or sensationalist about it (although I am aware of the general commentary regarding washable drop in filters). The simple fact is that the water washable filters are less hassle, end of story.

 

Order from Amazon.
Install (OE quality paper filter). Every 30K or so.