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Duramax Fifth Generation: 2011-2016 (LML) Discuss the fifth generation (2011-2016) of the 6.6L Duramax diesel engine & associated components. Engine related discussion ONLY.

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Old 05-05-2016, 02:40 PM   #11 (permalink)
2007.5 LMM
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FILTER % EFFICIENCY

AC Delco OE 99.93%
Baldwin paper 99.72%
No name pargain paper 99.32%
AFE Pro Guard 7 panel filter 99.23%
WIX/Napa Gold 99.03%
Purolator paper 98.73%
Amsoil, new style 98.63%
UNI 97.93%
K&N 96.80%

FILTER RESTRICTION in inches of water

K&N 4.54
Mystery bargain 4.78
AFE Pro Guard 4.99
Purolator 5.05
WIX/Napa Gold 5.06
UNI 5.40
Baldwin 5.71
Amsoil 5.88
AC Delco 6.23

FILTER Dirt Holding Capacity

AC Delco 573.898 grams
WIX/Napa Gold 447.366 g
Purolator 388.659 g
Baldwin 388.154 g
UNI 374.638 g
Mystery bargain 350.402 g
AFE Pro Guard 7 232.516 g
K&N 211.580 g
Amsoil 196.323 g

FILTER DIRT IN GRAMS PASSED

AC Delco 0.4g
Baldwin 1.1g
AFE Pro Guard 7 1.8g
Mystery bargain 2.4g
Amsoil 2.7g
WIX/Napa Gold 4.4g
Purolator 5.0g
K&N 6.0g
UNI 7.9g

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Old 05-05-2016, 02:46 PM   #12 (permalink)
2007.5 LMM
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K&N Air Filter Review - Debunking the Myths (and why OEM is better)

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Custom Fit 20" High Performance Wheels
35/12.5R/20" 10 Ply Mickey Thompson Baja ATZ
SOLD 2007.5 LMM
Silverado 2500HD, 4x4,Allison, CrewCab, Z71, Rhino Lining, Garmin 550, Tinted windows, ProComp Leveling Kit, BFG KM2"E rated" 285/70/17, backup camera, Escord 8500, Westin side bars.
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Old 05-08-2016, 02:49 PM   #13 (permalink)
ktmrfs
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Quote:
Originally Posted by 2007.5 LMM View Post
FILTER % EFFICIENCY

AC Delco OE 99.93%
Baldwin paper 99.72%
No name pargain paper 99.32%
AFE Pro Guard 7 panel filter 99.23%
WIX/Napa Gold 99.03%
Purolator paper 98.73%
Amsoil, new style 98.63%
UNI 97.93%
K&N 96.80%

FILTER RESTRICTION in inches of water

K&N 4.54
Mystery bargain 4.78
AFE Pro Guard 4.99
Purolator 5.05
WIX/Napa Gold 5.06
UNI 5.40
Baldwin 5.71
Amsoil 5.88
AC Delco 6.23

FILTER Dirt Holding Capacity

AC Delco 573.898 grams
WIX/Napa Gold 447.366 g
Purolator 388.659 g
Baldwin 388.154 g
UNI 374.638 g
Mystery bargain 350.402 g
AFE Pro Guard 7 232.516 g
K&N 211.580 g
Amsoil 196.323 g

FILTER DIRT IN GRAMS PASSED

AC Delco 0.4g
Baldwin 1.1g
AFE Pro Guard 7 1.8g
Mystery bargain 2.4g
Amsoil 2.7g
WIX/Napa Gold 4.4g
Purolator 5.0g
K&N 6.0g
UNI 7.9g
the 2" of water differnce in restriction between the OEM and other filters is virtually negligible. while it seems like a nice number, 2" of Water is about 0.07 PSI.

winner IMHO is OEM by a large margin.
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Old 05-09-2016, 06:17 AM   #14 (permalink)
2007.5 LMM
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I agree !
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Old 05-10-2016, 12:09 AM   #15 (permalink)
Dmax 5th Wheel
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Soooo... Stock right?
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Old 05-10-2016, 04:14 PM   #16 (permalink)
2007.5 LMM
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Quote:
Originally Posted by Dmax 5th Wheel View Post
Soooo... Stock right?
Correct !
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Head Rest,ALC Blackout Pkg,Fab Tech 6" Lift Kit
Stainless Exhaust Tips,Z-92 Dash Gauge Face,ALC High Flo-Pro Custom Dual Exhaust,Custom Painted Pocket Wheel Flares,Stainless Steel Step Bars ( Wide Oval )
Custom Fit 20" High Performance Wheels
35/12.5R/20" 10 Ply Mickey Thompson Baja ATZ
SOLD 2007.5 LMM
Silverado 2500HD, 4x4,Allison, CrewCab, Z71, Rhino Lining, Garmin 550, Tinted windows, ProComp Leveling Kit, BFG KM2"E rated" 285/70/17, backup camera, Escord 8500, Westin side bars.
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Old 05-10-2016, 06:41 PM   #17 (permalink)
IGO1320
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Well I do use a K&N filter and have on all my vehicles since 1980. My current Duramax has 557k miles it does not use oil, it does not leak, it does not have excessive blow by, and my UOI have low silicone (measurement of dirt that has travelled into the crankcase). I did not buy it for more power, I find it is a more cost efficient method of filtering the air. Most are probably just as well served to use the stock filter. I think the test you see are not very "real world" and K&N filters sufficiently to prevent any damage. I live on a sand road and have towed in all conditions around the country, my UOI results have been consistent for years.
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Kitty on a "warm shelf", K+N Drop-in filter
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Old 05-10-2016, 08:12 PM   #18 (permalink)
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Quote:
Originally Posted by 2007.5 LMM View Post
FILTER % EFFICIENCY

AC Delco OE 99.93%
Baldwin paper 99.72%
No name pargain paper 99.32%
AFE Pro Guard 7 panel filter 99.23%
WIX/Napa Gold 99.03%
Purolator paper 98.73%
Amsoil, new style 98.63%
UNI 97.93%
K&N 96.80%

FILTER RESTRICTION in inches of water

K&N 4.54
Mystery bargain 4.78
AFE Pro Guard 4.99
Purolator 5.05
WIX/Napa Gold 5.06
UNI 5.40
Baldwin 5.71
Amsoil 5.88
AC Delco 6.23

FILTER Dirt Holding Capacity

AC Delco 573.898 grams
WIX/Napa Gold 447.366 g
Purolator 388.659 g
Baldwin 388.154 g
UNI 374.638 g
Mystery bargain 350.402 g
AFE Pro Guard 7 232.516 g
K&N 211.580 g
Amsoil 196.323 g

FILTER DIRT IN GRAMS PASSED

AC Delco 0.4g
Baldwin 1.1g
AFE Pro Guard 7 1.8g
Mystery bargain 2.4g
Amsoil 2.7g
WIX/Napa Gold 4.4g
Purolator 5.0g
K&N 6.0g
UNI 7.9g



Hmmm, no mention of the Donaldson Powercore G2??? I think they made some OEM replacements for the earlier trucks but you have to buy an aftermarket CAI (Volant, S&B) to use one in the later model trucks. IIRC, they filter and flow better than OEM.
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Old 05-17-2016, 01:50 PM   #19 (permalink)
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I read in this thread that stock is the best.
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Old 05-17-2016, 06:19 PM   #20 (permalink)
Hal Hughes
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Aprilwine, I agree with you. When talking about the OEM air filters, which year are we talking about. I know earlier years used the Donaldson air filter as OEM. Since at least 2011,that is no longer true. I switched my air box out to a Volant with the Donaldson Powercore air filter. I did that because of the issues some were having with the plastic piece inside the air box breaking and being sucked into the intake. I believe if someone has a S&B intake, they can get a Donaldson Powercore filter for it.

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