K&N increase gas mileage?
 

If I were to get a K&N air filter, would my gas mileage increase per gallon? I don't care about the performance aspect, I just want to save some gas since I drive so much and the gas price is so high. Any information would be awesome! Thanks!

Re: K&N increase gas mileage?
 

It will help slightly. Anything you can do to reduce pumping losses will increase gas mileage. An exhaust will help too.

Re: K&N increase gas mileage?
 

Cleaning your stock filter would help a little also.

Re: K&N increase gas mileage?
 

stock filter can be replaced for like 10 dollars! Fuck cleaning it! lol. << LAZY

K&Ns are rechargable so in theory, they will last 1 million miles. You can follow the steps every so many thousand miles, and it will be as good as new.

Re: K&N increase gas mileage?
 

Short answer: Yes.

Long answer: It will take an awful lot of driving to make up the price of the filter in gas alone, but the fact its cleanable and reusable will also save money in the long run. On the downside, the K&N will allow more dirt particles to enter your engine both causing a *slight* amount of extra wear plus causing your oil to become dirty and worn quicker. This is only an issue if you're interested in extended drain intervals, if you're changing oil at 3k miles this becomes a nonissue. On the topic of oil, follow Mitsu's oil change interval recomendations in the owner's manual, changing at 3k/3months is WAY overkill and wastefull unless you're really agressive with the car (which it doesn't sound like you are). A few extra PSI in your tires will help increase gas mileage, I generally run about 1-2 above the recomended in all my tires since I do a lot of highway driving and feel cornering performance improves with the stiffened sideway (the con will be a slightly rougher ride...but you'll also be extending tire life which is good).

Regarding stock paper filters, shaking them out every few thousand miles isn't a bad idea. This will get the larger surface pieces of dirt particles, bugs, etc. off allowing better airflow and extending the life a bit.

Re: K&N increase gas mileage?
 

Now that I read this, I don't understand so well. You guys have all told me some different things.

Re: K&N increase gas mileage?
 

it can help but not really

Re: K&N increase gas mileage?
 

OK thanks. That makes more sense.

Re: K&N increase gas mileage?
 

How does that make more sense? He agreed then disagreed within the same sentance.

A K&N is a good investment in the long-run since its the last air filter you'll ever buy for your car and will get you slightly better fuel economy while also gaining more power and response from your engine.

Re: K&N increase gas mileage?
 

Like Chris said, yes it will increase your mpg. But not so much that you will notice everytime you fill up. In the long run it will save you alot of gas. You might see 1-2 mpg difference at each fill up, but that adds up over time.

Also doing a good quality tuneup, keeping your tires inflated to the proper pressure and using good gas will all help increase your mpg.

All of these added together will make a dramatic difference if you are getting poor mpg. Keeping your engine healthy is the biggest key to getting good mileage.

I stand behind K&N filters also if for nothing else than it is cheaper in the long run then replacing your air filter at the recommended intervals.

Re: K&N increase gas mileage?
 

I saw a 3-4 mpg increase on my old mazda mx-6 after replacing the filter with a k&n and opening up the air box. I put a k&n in anna's lancer and saw 2-3 mpg increase, but the stock one was soooo dirty, after swapping in the k&n, I swear the car had 15 more horsepower!

Re: K&N increase gas mileage?
 

Alright, thanks guys!!

Re: K&N increase gas mileage?
 

I told her to look into getting one... she found out today that she has one! haha. My bad!!

josh

Re: K&N increase gas mileage?
 

haha :D

Re: K&N increase gas mileage?
 

You might consider not driving so much... Your car has better chances of running longer. Tiny T

Re: K&N increase gas mileage?
 

Ha, we all know that will never happen.