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Illustrious Illuminated High Mullet
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| Anyone use them? Any increase in MPG? What vehicle do you have them on? I don't want to hear what the company says, I want real use figures if any.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>I'm a Sagittarius...If you don't want to hear the truth then don't ask my opinion!
Then again I'm a "Vacuous Asshat"  Political Correctness:
A doctrine fostered by a delusional, illogical liberal minority, and rapidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. Century 25' Mirada 350/260HP "ISLAND LADY" >>>> Calera, Alabama My Pictures
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Mingo
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My Tahoe has a 5.3 L engine. The K&N filter was dirty so I replaced it with a Fram filter and lost 1.2 mpg. I only have the replacement element from K&N which I cleaned and reinstalled just to see and I regained the 1.2 mpg.
SEAPRO SV2100
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White Marlin
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| Ron, Ive got the complete kit... ""Cold Air intake with the open K&N on it...I think I got around 1.5mpg better.. But I can not atest to that..I love the sound of it though..
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Blue Marlin
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There are a lot of people that say that it helps and those that say it's a waste of money. On many vehicles, if you simply over oil the filter just slightly, it will foul/dirty up your Mass Air Flow Sensor and cause you to loose even more MPG's. For me, it's a waste of money. Engineers that get paid way more than me to design the engines and setups the way they do for a reason.
------------------------------------------------------------------------------------------------------------- "H2O: 2 parts hydrogen 1 part obsession." Jon
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Trigger
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I cant tell much difference, maybe a slight gain in MPG but not much (maybe 1ish if that) and I get 12/14 so I need all the help I can get!!, I have one on my 97 Land Cruiser which has a lift, snorkle, winch bumper and 33inch tires, and the snorkle helped more than the K&N, good luck
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Sailfish
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Ron, I first started using them back in 88 when I started racing motorcycles. They definitely made a difference on the VFR750RR and so I've continued to use them on just about every vehicle I've had since. The boat equivalent for the Cats in my boat definitely made a difference and the one I put in the new Yukon seem to have increased my mpg about 1 mph on average.
Even if its all in my head - which I doubt - they still will save you money by not having to replace every 5k miles or so. 1 cleaning and oil kit will last for several cars/boats for years.
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PFF Moderator
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| I've used them on every vehicle I've owned since about 95. Just the cost or replacement filter's was enough for me. For my new Duramax, it's $85 for a paper Fram and was $65 for a K&N that's lifetime. I did the calculations on them back when and there was always a .75 to 1.5 mpg increase. If you have a flow guage on your vehicle, you can see the difference.... I used them on race engines as well. I have them on the twin Detroits on the boat as well.
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Sailfish
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Funny you asked this (this just happened last week). Ron, I have several friends that swear by them so last week I went to another friend "John Boyden" that owns Speed Unlimited on New Warrington Road. I went to school with his son and have known John for almost 30 years. I have a 2002 F150 Supercrew with the 5.4 Triton (80,000 miles),and went to John with my usual 50 questions. After talking to him, I ordered the Cold Air K&N,and then got him to order the Cad back duel exhaust, and the MaxMicroTuner Superchip. Within 2 day all had arrived, so John set up Mike at Muffler Masters on Pace to do the duels. Once I spoke with Mike I got him to go ahead and install the K&N. I picked the truck up and took it back to John's place and he programmed the chip. I got in the truck,and it performed like a brand new vehicle. The performance was amazing, and I found myself having to back off of the peddle because of the ease of the truck reaching peek speeds in and out of traffic. I am going to run through 3 tanks of fuel (Johns suggestion) check the mileage and average for a MPG, but I can tell you already (after 3/4 tank of fuel) that this machine is running way more efficient than it was... If your interested, I can give you the final results once that 3rd tank of fuel is used. In my opinion, it is the best bolt on performance move that I could have made. Tight lines, T
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Trigger
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| I have the K & N filter you buy from Advance Auto Parts, not the whole intake kit... On my 04 Tacoma, 3.4L v6 I gain about 1.5 mpg... But stock filters for it are $18 every 6000 miles, so $60 for 100,000 miles is a great trade-off Justin
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John at SU is good people, that's where I got the setups for the Detroits.
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Sailfish
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Hit the buy it now button Ron,ya won't be disappointed. Just be careful not to over-oil the filter. The recharger kits are probably less than a new paper filter.
Elbow Room
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I buy the oil only and have been cleaning them with that Purple Power cleaner for years without any problems. How much oil to put on is definately important.
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Grouper
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i have a 12" round one on a 94 dodge ram 1500 it has made an improvement of around 1.5 mpg,when first cranked sounds like a jet sucking air
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Sailfish
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There is a trade off. It allows easier airflow witch will increase MPG by a % ( What % pepends on vehicle) It does this by opening the pores a little more and hope to use an oil to catch particles. A lot gets by them and it can torture your engine over time. But with fuel prices it may not be so bad. I had an F-250 7.3l diesel with one and it gained about 1 mpg but I was religious about cleaning it and oiling it. THat is key to having a vehicle with one, CLEAN AND OIL IT!!! everytime you change your oil.
Fish On!!!
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Illustrious Illuminated High Mullet
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| My Dad in Plant City, FL asked me to ask you guys about them. I was thinking of getting one for my Ram 2500 Diesel when the filter needs to be changed again. Thanks, I'll link him to our site. I figure that on my trip to Glacier National Park in June I'll put about 4,000 miles on the truck. At $4.50/gal and @ 10MPG my fuel consumption will be 400 gals and $1800.00. If I can get 11MPG the cost will be $1636.00, or a savings of $164.00. If I get .5MPG increase that is a saving of $82.00. Diesel will be more then $4.50 by then and out west. Looks like the filter change will be soon.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>I'm a Sagittarius...If you don't want to hear the truth then don't ask my opinion!
Then again I'm a "Vacuous Asshat" Political Correctness:
A doctrine fostered by a delusional, illogical liberal minority, and rapidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. Century 25' Mirada 350/260HP "ISLAND LADY" >>>> Calera, Alabama My Pictures
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Illustrious Illuminated High Mullet
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sniper (5/13/2008)
There is a trade off. It allows easier airflow witch will increase MPG by a % ( What % pepends on vehicle) It does this by opening the pores a little more and hope to use an oil to catch particles. A lot gets by them and it can torture your engine over time. But with fuel prices it may not be so bad. I had an F-250 7.3l diesel with one and it gained about 1 mpg but I was religious about cleaning it and oiling it. THat is key to having a vehicle with one, CLEAN AND OIL IT!!! everytime you change your oil.Dodges recommended oil changes are 15,000/normal conditions and 7,500 towing. I do a 7-10,000 oil change/normal, and change oil before and after a trip out west/towing. Would that suffice with the air filter cleaning and bath? If sooner intervals..what are they.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>I'm a Sagittarius...If you don't want to hear the truth then don't ask my opinion!
Then again I'm a "Vacuous Asshat" Political Correctness:
A doctrine fostered by a delusional, illogical liberal minority, and rapidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. Century 25' Mirada 350/260HP "ISLAND LADY" >>>> Calera, Alabama My Pictures
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Illustrious Illuminated High Mullet
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Boatjob1 (5/13/2008)
Funny you asked this (this just happened last week). Ron, I have several friends that swear by them so last week I went to another friend "John Boyden" that owns Speed Unlimited on New Warrington Road. I went to school with his son and have known John for almost 30 years. I have a 2002 F150 Supercrew with the 5.4 Triton (80,000 miles),and went to John with my usual 50 questions. After talking to him, I ordered the Cold Air K&N,and then got him to order the Cad back duel exhaust, and the MaxMicroTuner Superchip. Within 2 day all had arrived, so John set up Mike at Muffler Masters on Pace to do the duels. Once I spoke with Mike I got him to go ahead and install the K&N. I picked the truck up and took it back to John's place and he programmed the chip. I got in the truck,and it performed like a brand new vehicle. The performance was amazing, and I found myself having to back off of the peddle because of the ease of the truck reaching peek speeds in and out of traffic. I am going to run through 3 tanks of fuel (Johns suggestion) check the mileage and average for a MPG, but I can tell you already (after 3/4 tank of fuel) that this machine is running way more efficient than it was... If your interested, I can give you the final results once that 3rd tank of fuel is used. In my opinion, it is the best bolt on performance move that I could have made. Tight lines, TThe Cad exhaust with the chip is what most likely gave you better performance. I'm thinking about the exhaust to go along with the programmer I bought for my two last trips out west. I highly recommend the chip/re-programmer for anyone who tows for any distance. I would be interested in your performance after your test runs. I probably didn't see much of a difference towing 11,000# in MPG but sure can tell you the performance with the programmer and without is like night and day. I tried this ONLY once...I got on it from a dead stop without a trailer in tow and could smoke the tires . Also towing my 7,000# boat I have to at times be careful starting off as the tires will break loose. Climbing up hills and attaining speed...well you can't compair...start hill at 60 and without the programmer..top the hill at 30-40. And with the programer start at 60 and end up at 60, that is with my 5th wheel in tow.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>I'm a Sagittarius...If you don't want to hear the truth then don't ask my opinion!
Then again I'm a "Vacuous Asshat" Political Correctness:
A doctrine fostered by a delusional, illogical liberal minority, and rapidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. Century 25' Mirada 350/260HP "ISLAND LADY" >>>> Calera, Alabama My Pictures
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Mingo
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| Check this guys link out Tunaman. He goes over several of the filters with stats to back his views up. http://www.bobistheoilguy.com/airfilter/airtest1.htm
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>Sometimes, we just need to remember what the rules of life really are:
You only need two tools: WD-40 and Duct Tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
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Snapper
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| OK, I am totally stupid on the K & N Filters. A question for you guys out there with the diesels, is this something that I can install or does it need to be installed by someone else? Also, I have a 6L Power Stroke, will it do anything to the warranty? I would want the cold air intake and filter I think. Mark
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Trigger
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I use them in both my car and truck and agree that maybe there is about a 1mpg increase. I forgot about the oiling part I guess I need to do that, but how often are you supposed to oil them?
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Sailfish
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| Hello again Ron. I was reading up on the chip and they make a statement in the instructions that with the chip alone (Diesels) they can increase HP an additional 120+ HP. I have no experience with auto and truck diesels, but you might want to give John Boyden a call. Tell him Tom Brewer referred you, he is a great guy, and will steer you in the right direction even giving you some options after finding out exactly what your trying to accomplish. This is all John does for a living, and I trust him like he's family..... Speed Unlimited Inc
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Get directions
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Robins 60th birthday celebration (2005), the guy's still got it! http://www.youtube.com/watch?v=x0d1HilfLxA "You cannot help the poor by destroying the rich, you cannot strengthen the weak by weakening the strong, you cannot lift the wage earner up by pulling the wage payer down, you cannot further the brotherhood of man by inciting class hatred. You cannot build character and courage by taking away men's initiative and independence." (Abraham Lincoln)
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PFF Moderator
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| Mark, the cold air is something you can do yourself and worth the money imo. Boatjob, as for the programmers/chips. I've bought several from John at Speed Unlimited both gas and diesel. What I'm running right now is a Diablo Predator and they range from 100 to 150 hp max on some of the newer models ('07-08). I'm currently around 460 hp and 800 ft/pd torque and averaging 17.5-18.5 mpg around town with my Duramax. If someone is thinking about running one of these, they are great but there is research and reading you need to do ahead of time. IE with the diesel programmers, it's pretty common for guys trying to tow with a programmer set on the max hp setting to burn up the tranny, rearend and turbo. You have to put it in tow setting to do it.......duh....but some guys just like the hp I guess.
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Trigger
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"There is a trade off. It allows easier airflow witch will increase MPG by a % ( What % pepends on vehicle) It does this by opening the pores a little more and hope to use an oil to catch particles. A lot gets by them and it can torture your engine over time."
I've got an old Pathfinder with over 200K miles on a K&N-filter's never been cleaned.
"If a law is unjust, a man is not only right to disobey it, he is obligated to do so."
Thomas Jefferson
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Trigger
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| k&n had its day, there are much better OILLESS filters out there. i used to use them in my vehicles, but you have to clean them all the time. in my opinion the oilless versions that flow more air are way better and safer for your engine too and they are also reusable. i think fram makes one there are many companies out there now that make the oilless filter. but whatever you do DO NOT put one in a DIESEL!!! it will drastically shorten the life of that motor.
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Grouper
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I don't think the K&N's are really worth the money unless you do the whole cold air intake with it then you may only see 1.5-2 MPG increase. As far as the chips and programmers go I have a Ford Powerstroke and have been reading up on the programmers the best one seems to be the SCT with a custom program created for either economy, towing and race. Horsepower increases are anywhere from 50-150. But you have to watch out with the Fords, the head gasket bolts are shit and will stretch under the increased PSI from the turbo causing the gaskets to rupture and maybe a warped head.
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Trigger
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"but whatever you do DO NOT put one in a DIESEL!!! it will drastically shorten the life of that motor."
Just curious, what diesels do you work on?
"If a law is unjust, a man is not only right to disobey it, he is obligated to do so."
Thomas Jefferson
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Trigger
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Outawitz (5/14/2008)
"but whatever you do DO NOT put one in a DIESEL!!! it will drastically shorten the life of that motor."
Just curious, what diesels do you work on?i was a diesel tech at a ford dealership for 3 years and now i work on heavy duty diesel. why?
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Trigger
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Like I said, just curious. I'm a Chief Engineer & the boat I work on has Cat 3516's, 3412's, 3208, & 3306 ( I hate cats). I've worked on Detroits & EMD's.
"If a law is unjust, a man is not only right to disobey it, he is obligated to do so."
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Trigger
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matthewy8 (5/14/2008)
k&n had its day, there are much better OILLESS filters out there.......... but whatever you do DO NOT put one in a DIESEL!!! it will drastically shorten the life of that motor.How so????? They have BETTER filtration than a stock air filter which should extend the life. I would suggest that any decrease in the engine life you might see in diesels with K&N filters on them have to do with abuse, neglect or other improperly installed/tuned performance products (Like people creating a severe lean condition when they try to remap for maximum mpg).
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Trigger
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Knot a Yacht (5/13/2008)
......On many vehicles, if you simply over oil the filter just slightly, it will foul/dirty up your Mass Air Flow Sensor and cause you to loose even more MPG's....... Have you ever seen this????? You really have to go nuts with the oil to screw one up. I know of two instances where people had MAFS problems after installing K&N filters. The first drove on dirt roads regularly and wasn't cleaning/servicing his filter properly(dirt was the propblem not oil) the other one didn't read the instructions and had used an entire 8 oz bottle of oil on his filter each time he would sevice it. After he cleaned his intake and seviced it properly no problems.
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