K & N Filters again??

[ItsMrBill]

I have just looked on the K & N website for the Duramax air filter part number and noticed that it is the same part number for the 6.0 and 8.1 gassers. Do these gas engines share the same air box as the diesel?

The K & N Part number suggested from their web site is 33-2135.

[Nels]

Yup!
As a matter of fact, I recently swapped my K&N for an Amsoil filter and gave the K&N to a co-worker, who is now using it in his 1500 Silverado.

------------------
Nels
gop4evr@lsol.net
2001 Chev 2500HD DMAX/Allison 4WD x-cab long box, LT trim (Forest green)
GM Fold-A-Cover & Line-X spray in liner, Autometer Boost & EGT, Tekonsha Prodigy controller

See it: My New Duramax HD (http://members.lsol.net/GOP4EVR/unlinked/fullview.jpg)
Mileage & service cost spreadsheet (http://members.lsol.net/gop4evr/unlinked/01truckserv.xls) (MS Excel file)

[ItsMrBill]

Ok, after much consideration and research on the air filter subject I plan on going with an Amsoil 2 stage air filter. However their website, unlike the K & N site, does not give a clear application part number for the product.

Could somebody reply with the Amsoil part number for the Duramax Air filter.

Ans lastly, other than ordering it online at the Amsoil site, is there anyone out there that is or knows of an Amsoil dealer in the New Hampshire area?

Thanks.

[polaris800]

I have a amsoil 2 stage filter and I DO NOT like it. For fifty dollors it should fit the stock air box correctly. Putting it into the airbox is a very poor fit. I consider this to be JUNK!

[Nels]

Mine fits fine. The foam gasket around the Amsoil filter is made to be compressed (alot!). This way it fills any gaps around the edge of the filter. When I first saw that huge foam gasket, I asked myself, "Is all that going to fit in the airbox?" But it does. One thing is sure -- NOTHING is getting in from around the edges!

[LanduytG]

I have not had one complaint about the fit of the Amsoil air filter in a Dmax other that its a tight fit. Better to have a real tight fit than sloppy one.

------------------
greg@lubespecialist.com
www.lubespecialist.com (http://www.lubespecialist.com)
1-888-306-4255

Greg A. Landuyt
99 VW Beetle TDI
Stock for now.
95 K2500 6.5TD
Phazer,ATS Exhaust,JK Inter Cooler,Gear Vendors, Cooling Mod, Espar Diesel Fired Engine Heater, FSD Cooler, Power Shot 2000, JK Head Light Booster, Amsoil Dual By-Pas Filter, Amsoil Fluids and Grease

[Joe.G]

Amsoil Air Filter is Part # TS 123

[29mdla]

Just cleaned my K&N filter after 16K miles. No dust in the inlet. Got 2 teaspoons of fine sand/dust when it was washed. I have a very cutup air box.
Been using K&N in race and street cars for a lot of years and never had the problems brought up in this forum. Have not used any other filters other than stock, so only comparing to stock. But cannot see any other filter doing any better for that amount of miles.

[mackin]

Amsoil fits just fine. Blot the excessive oil out. Mine didn't come to soaked. Just push into bottom about 1/2 way stop at wire screen. Note wire mess is face up so you can see it. The other 1/2 goes "snugly into the top half. For $47.50 it is well worth it IMHO. If you can in get Mr. JK to explain his opinion on air filters it makes the most sense I have seen posted here.
MAC :D

[2DAMAX]

Hey 29mdla:Have you ever heard the saying dont try too pick fly Sh** out of pepper.I think I would agree with you . steve :D :D

[ 03-28-2002: Message edited by: 2DAMAX ]</p>

[srubrn]

itsmrbill,

Try Kennedydiesel.com to buy your filter. John is very good to work with and he uses this forum. He provides loads of info for us. Ordered a BD Box from him today.

[Kennedy]

Another good one for opinions/experiences would be a turbo shop. I recently spoke with a key player in the Buick GN scene, and he shared my views of the K&N. In fact, I sent him an Amsoil filter to try on his Cummins!

I generally do not see dust on the clean side of a K&N. What you will find is grit. The grainy stuff will settle in any oily film (the Dmax has none) like the CDR slime in the elbow on a 6.5l. People try to SEE the grit, but I find you can feel it when it collects in this residue.

Take my word for it or not, but keep this in mind: K&N is the top selling performance filter on the market. One could literally let them sell themselves by name alone, and move a lot. I chose not to as I simply do not believe in them...

And before someone brings up other mfrs with the cotton/gauze style: I think these filters screen dirt like an old pair of drawers. No matter if they are Fruit Of The Loom, BVD, or Hanes, they are all the same.

The foam filter has a coarse outer layer followed by a fine inner layer. Combine that with (spider web) tacky oil vs liquid oil, and the dirt has avery tough time getting through.

Didn't K&N used to say their filters filtered better as they filled up???

[george morrison]

I review hundreds of oil analysis results a week and I can spot a K&N filtered engine immediately. In most cases the K&N does *not* provide sufficient filtration for long engine/component life. If maximum engine/component life is not your primary concern, then the K&N is fine. If maximum life IS your reason for buying a diesel, I highly recommend doing a baseline oil analysis with the OEM filter, then doing the same with the after market filter, to maker sure that the filter is indeed working for you and your operational environment.
As a lube engineer, the #1 cause of premature engine/component failures is dirt ingestion. I cannot stress enough the importance of making certain that the air filter you are using is accomplishing what you want: filtering, performance, engine life. Oil analysis will give you the answer. Without running an oil analysis you are working blind and the air filter may indeed be filtering bricks and birds and little else..
George Morrison, STLE CLS

[george morrison]

On another web site we have a person switching from an OEM paper to a K&N with follow on oil analysis including particle count. This will give a very accurate account of just what the K&N does for his engine in his environment. (mostly on highway) I will share the results here. He is then going on to the Amsoil air filter. Again, I will share results.

[Kennedy]

But gee George, didnt you know that the oil used by K&N skews the results? The claim is that since it is mineral oil and mineral = silicates, that when the oil is pulled from the filter it then taints the results :rolleyes:

I actually have that bogus claim in an email somewhere. I even went so far as to spray a bunch of their oil in a clean sample bottle, intending to add clean motor oil and have analyzed. Never followed through...

[snuffy smith]

The K&N filters are a marketing gimmick. The oil analysis that I did twice with the K&N didnt show any high levels of silicon in the oil, but I know grit on the turbo blades when I see it. No thank you. You could not give me one for free now.

[Tader Jack]

There is an interesting side line to the K&N filter issue. When I first installed my K&N, the mileage went down. So after a few weeks, I put the oem filter back in, mileage went back up. Hmmm . . . what's going on. Put the K&N in and back down again. WTF. I was believing it was everything from fuel, to heat, my dog, my wife, etc. I've had the K&N in all winter with little change in fuel economy since last November.

Two weeks ago I changed over to the Amsoil filter. Guess what . . . yup, the fuel mileage went back UP. Something IS going on here. I do know there was quite a learning period by the computer and trans to get used to the new filter the first week of driving. It's like it had to learn all over again how and where to shift, etc. I don't know if these have a mass air sensor or whatever, but something is certainly telling the computer to change it's attitude on this truck.

The fuel mileage is still better with the Amsoil filter on the third tankful of fuel now than the K&N was the last several months. I even called the fuel distributor thinking that they changed from the winter to summer fuel mix, but that is not the case.

Has anyone else noticed this?

Jack Schultz, McKean, PA
jackschultz@adelphia.net

http://photos.yahoo.com/bc/jack_schultz2001

2001 Chevy Silverado, 4-WD, 2500HD, Crew Cab, Short Box
LT Trim, Black Onyx w/ Tan Leather
Beltronics 980 Radar Detector • Blinder M-10 Plus Laser Radar Jammer
4 Rockford Fosgate FRC2206 Full Range Speakers • Husky Rubber Floor Mats
Lund Interceptor Wind Deflector • J&J Stainless Steel Tube Grill
Putco Stainless Steel Bed Rails • Access Roll-up Tonneau Cover • Pendaliner SR Bed Liner
DTA Stainless Running Boards and Mud Flaps • VentShades • Pop-Lok Rear Tailgate Lock
Lucerix Remote Control X-Mount Camper Mirrors • Unity Dual Door-mount Halogen Spotlights
Air-Lift Super Duty Ride Control w/ Dual Controller & Onboard Compressor •
Tekonsha Voyager Trailer Brake Controller • Uniden 510XL PRO CB Radio, Wilson Antenna
Kennedy Diesel Headlight Harness with 4 Lamp Mode • PIAA Platinum Super White Headlight Bulbs
Amsoil 2-Stage Air Filter • FPPF Total Power Diesel Fuel Treatment • FPPF 8+ Cetane Improver
Amsoil 15W-40 Synthetic HD Diesel & Marine Engine Oil • Amsoil Series 2000 75W-90 Synthetic Gear Lube (GL-5)
------------------------------------------------

[thechevyhdman]

I bought an Amsoil and personally the design of it wasnt up to snuff from my intellectual point of view its just squished in there, I just didnt like it. My brothers been running K&N's in the race car he sponsors(Dirt Track)And the dust that blows around that place is as fine of a particle as you can get, Hes never had any problems with his Car etc. I run em on 3 6.5s, a 6.0, My Dmax etc. I am However gonna bring my oil up To H.O Penn for an SOS oil analysis to see whats in that black gold, But whats the max limits etc for dust etc in the DMAX, I am with Polaris in saying they are junk, However (wink wink) That did get me booted from another Web site. And watching TLC the other day they had Baja trucks with K&Ns on it too.Gosh what fools. I wonder what kind of air filter is in that race car Amsoil sponsors? I stick with Brand names or well known names where I can because I learned off that amsoil one, Ill be darned if I have to learn again. I am not slandering the Amsoil one Im just mad that I could have made that one my self by cutting the foam out of my old couch and soaking it in oil. I dont think its a great design, maybe the numbers etc are better than the K&N. But I just dont see how being around cars,trucks, etc I never ever even heard or seen anything about Amway..opps I mean Amsoil. I have all the stuff about how they first designed synthetic oil etc, And all stuff, even get the newsletter in the mail now, I just sometimes think if its too good to be true it usually is. I do believe that there oil is probably unparalled, but they have a long way to go before they make me a believer after looking at that air filter. I ran it for a week and just put her away and switched to a K&N If I have any problems Ill let ya know.

[mackin]

thechevyhdman ,


Ha, when we have our BEER RUN make sure you bring that couch cushion with you I want it............Keep it wrapped up OK?


Just keep one thing in mind when comparing GAS to OUR D-MAXES all that dirt that can or does go though has to bounce or deflect off the tight clearence TURBO BLADES (very exspensive) before it even makes it in to the combustion chamber to sand blast and score our cylinder walls and accumalate in the crankase and circulate to go to the oil filter and be removed 7000 approx damaging miles later and in addition race car motors are torn down rebuilt probably way before all the real damage is done GGGGEESSSHHHHHHHH
It's your choose not mine. Just make sure you get a good Quality air cleaner like AMSOIL..... LOL LOL :D :D :D :D
NOW DON"T FLAME ME I said "LIKE"

[ 04-08-2002: Message edited by: mackin ]</p>