K&N Air filter

[bob257]

Did I read correctly in the last Turbo Diesel Magazine, that if I install an after marked air filter like a K&N that it could void the warranty? I thought I read that if you install one that the dealership could argue that I messed it up if something goes wrong in the engine? That seems absurd to me. What are your thoughts?

 

[mfurrh55]

Back in 2004, I was at the service department at our local dodge dealership and they towed in a 2004 dodge one ton, and was telling the owner that his K&N filter was probably the reason his truck wouldn't start, and said if it is, they would not fix under warranty, of course i told them they were full of it too, but that is what they said about the warranty with the K&N BTW, i have ran a K&N since day one

 

[HBarlow]

Don't waste your money on a K&N filter. A piece of window screen will filter just as well and will cost less.

Out here in west Texas where cotton farming is very common along with low annual rainfall, dust is always in the air. A K&N filter is guaranteed to ruin an engine.

A friend of mine who was a mechanic in the nearby Dodge dealership told me several times it was common to have fairly new low mileage Dodges with Cummins engines come in complaining of excessive oil consumption and blue smoke. He said he and the other diesel tech pulled the truck into their workbay, opened the hood, removed the air box cover, and always found a pos K&N filter. He said they reported it to the service manager and the customer was called and told he would need a replacement engine on his dime. His engine warranty was void.

There is no reason to replace the high performance paper filter that Cummins engineers spent good money developing and testing with a worthless K&N. The OEM filter filters better, runs at least as well, won't set codes, and will not trash your engine or void your warranty.

The K&N and other aftermarket filters do nothing for performance in an unmolested or mildly modified engine.

 

[Grizzly]

I read all the time on TDR that K&N filters are no good and will void your warranty. I also hear that at my Dodge dealership and at Cummins SW. I don't believe you can get a better filter than an OEM filter.

Now you know, buy OEM.

 

[bry1216]

Did I read correctly in the last Turbo Diesel Magazine, that if I install an after marked air filter like a K&N that it could void the warranty? I thought I read that if you install one that the dealership could argue that I messed it up if something goes wrong in the engine? That seems absurd to me. What are your thoughts?

Hi,

Please review this link:

http://www.getdieselpower.com/my04dodge_files1/Spicer Filter Testing/Spicer_Filter_Testing.html



Your explanation is in section: "TOTAL DIRT PASSING THE FILTER DURING THE TEST"

 

[HBarlow]

[FONT=Arial, Helvetica, sans-serif][/FONT][FONT=Arial, Helvetica, sans-serif]And the winner is: K&N. The K&N window screen style filter allowed more dirt to pass through than all other filters. [/FONT][FONT=Arial, Helvetica, sans-serif]

"TOTAL DIRT PASSING THE FILTER DURING THE TEST. [FONT=Arial, Helvetica, sans-serif] This is how much dirt your engine will take in if you use the filter for the duration that would cause the filter to become "dirty" enough to need replacement or cleaning. The "Dirt Passing The Filter" is the dirt collected by the "Post Filter" during the test. [/FONT][/FONT]
FILTER DIRT IN GRAMS PASSED
AC Delco 0. 4 g
Baldwin 1. 1g
AFE Pro Guard 7 1. 8g
Mystery Bargain 2. 4g
Amsoil 2. 7g
WIX/Napa 4. 4g
Purolator 5. 0g[SIZE=+0] [/SIZE]
[SIZE=+0]K&N 6. 0g[/SIZE]
[SIZE=+0]UNI 7. 9g[/SIZE]
[SIZE=+0]Note: The Purolator was reported to have a seal malfunction during the test and passed more dirt than it would have with a good seal. " [/SIZE]

 

[crispyboy]

I would like to see the test results of the Hastings filter. I have used these for years in equipment.
Interestingly enough, I changed the transmission fluid in our Grand Cherokee and the Dodge pickup this fall. Both the OEM and Hastings transmission filters had the same stamp from the company who made them for Chrysler. The Hastings was only missing the Chrysler part number.

 

[LocoPilot750]

I have been using the same K&N in my '97 since I got it, about 400,000 miles, no problems. And I spend a lot of time in dusty conditions. I serviced about it every 50k or so, and make sure the seal is greased well. Myself, I like the idea of an oiled filter in dusty conditions. I change engine oil every 7500 miles,it always looks normal, and it uses maybe half a qt between changes. No reason to change now I guess, but I will be ordering a 2014 sometime soon, and will investigate further.

 

[Regcabguy]

[FONT=Arial, Helvetica, sans-serif][/FONT][FONT=Arial, Helvetica, sans-serif]And the winner is: K&N. The K&N window screen style filter allowed more dirt to pass through than all other filters. [/FONT][FONT=Arial, Helvetica, sans-serif]

"TOTAL DIRT PASSING THE FILTER DURING THE TEST. [FONT=Arial, Helvetica, sans-serif] This is how much dirt your engine will take in if you use the filter for the duration that would cause the filter to become "dirty" enough to need replacement or cleaning. The "Dirt Passing The Filter" is the dirt collected by the "Post Filter" during the test. [/FONT][/FONT]
FILTER DIRT IN GRAMS PASSED
AC Delco 0. 4 g
Baldwin 1. 1g
AFE Pro Guard 7 1. 8g
Mystery Bargain 2. 4g
Amsoil 2. 7g
WIX/Napa 4. 4g
Purolator 5. 0g[SIZE=+0] [/SIZE]
[SIZE=+0]K&N 6. 0g[/SIZE]
[SIZE=+0]UNI 7. 9g[/SIZE]
[SIZE=+0]Note: The Purolator was reported to have a seal malfunction during the test and passed more dirt than it would have with a good seal. " [/SIZE]

No Fleetguard?

 

[CKelley1]

Harvey some people can not grasp what they read. I keep a new K&N filter in my shop for a dodge. when someone ask me about them I take it out of the box and hold it up to the sun and let them look at the sieve. it is a little better at keeping out gravel than the window screen. cummins has been warning of oiled filters especially the K&N for over two decades now. why would anyone spend tens of thousands of dollars on a truck and then put a K&N on it that takes 7 miles off of the engine life for every mile you drive it. how did I get the 7 miles?. from cummins test data, do the math on the tdr test and I think it will still be valid, and the cummins test was in the 1980's

 

[Ram4Sam]

Here is my blackstone oil sheet for my truck since it was new. K & N's work just fine for me, it has had one or an AFE since about day 100..... silicone levels are well below the average.



Sam

 

[AH64ID]

Ram4Sam your results are not normal, and simple searching will show the destruction they cause. I am not sure why you have good luck, but your showing people atypical results, and hopefully it doesn't lead to them ignorantly purchasing one of the worst filters on the market.

 

[Simplysmn]

Well He also lives in Redland's not that much dust or dirt if he lived in the Desert I'de tell him he's Crazy but that's up to Him if he want's to run a Junk air filter . You can lead a Horse to water but I'll be Darn'd if you can make it drink .

 

[Ram4Sam]

Ram4Sam your results are not normal, and simple searching will show the destruction they cause. I am not sure why you have good luck, but your showing people atypical results, and hopefully it doesn't lead to them ignorantly purchasing one of the worst filters on the market.

Real world testing versus controlled lab testing... ... .



Sam

 

[Ram4Sam]

Well He also lives in Redland's not that much dust or dirt if he lived in the Desert I'de tell him he's Crazy but that's up to Him if he want's to run a Junk air filter . You can lead a Horse to water but I'll be Darn'd if you can make it drink .

Actually, I am up in your neighborhood several times a year wandering the desert at the off road races..... and a few days at Quartzite every year.....



Sam

 

[Bob4x4]

Actually, I am up in your neighborhood several times a year wandering the desert at the off road races..... and a few days at Quartzite every year.....

Sam

And in Palmdale at the drags where the sand blows across the track... ... ... ... the good old days

 

[AH64ID]

Real world testing versus controlled lab testing... ... .

Sam

Yup, your use looks more like a controlled lab test. Real world testing shows numerous dusted engines, far more than any other single air filter. They ruin sensors on any rig, and are famous for eating turbos as well.

It's your money, but it looks like it's being spent poorly.

 

[Ram4Sam]

Yup, your use looks more like a controlled lab test. Real world testing shows numerous dusted engines, far more than any other single air filter. They ruin sensors on any rig, and are famous for eating turbos as well.



It's your money, but it looks like it's being spent poorly.

Wow, an internet expert on air filtration AND a financial guru to boot... ... I'll go with the Blackstone science and my own results, if it causes you this much angst, well... ... .



My heater core did start leaking a few days ago, which is a major bummer..... I wonder if the K&N... ... ... ...



Sam

 

[AH64ID]

I am glad you researched my experience, too bad your air filter research is just as **** poor

Blackstone is another story, I was less than impressed with their UOA.

No personal angst, just dislike for such a worthless product. I have seen, firsthand since your ASSumptions about research are top notch, too many issues caused by them. Proper servicing, improper servicing, it doesn't really seem to matter. They are junk at best, junk with really good marketing.

My dislike isn't only with K&N, I dislike WIX fuel filters for similar reasons.

 

[BIGNASTY]

Real world testing versus controlled lab testing... ... .



Sam

Sam im not siding with either one of the sides, I used Blackstone a few times and then a lab rat where I worked asked why do you use those inconsistent people? I thought that they were one of the best Labs around, He kind of raised his brow when I said that, and gave me a test vial. His instructions were to take a sample for Blackstone and bring me one next time you change you oil. So I did when I got the Blackstone results back he had tested mine in his lab at the place where we worked, and im sure that a BAZILLION DOLLAR A YEAR MAJOR OIL COMPANY HAS JUST AS GOOD EQUIPMENT AS BLACKSTONE, Maybe even a little better.



The test results were quite a bit different, not saying WHO is right or WHO is wrong but I trust this guy and he wasn't in business to make money on you sending in test samples. He doesn't tell you what to do or why you should do this or that, but he knows what's in the oil sample and lets me make the choice. JMO



BIG