WARNING Tahoe/Yukon/Suburban

[Freedom Motorsports]

Inadequate filtration. They still use paper filters from the factory in these trucks. I believe that is inadequate. Using an aftermarket air filter for better filtration will help to reduce the amount of dirt getting to the throttle body in the first place while also reducing the need to clean the throttle body as often.

K&N, AFE, AMSOIL, all offer good alternatives.

 

[LuSe4]

Inadequate filtration. They still use paper filters from the factory in these trucks. I believe that is inadequate. Using an aftermarket air filter for better filtration will help to reduce the amount of dirt getting to the throttle body in the first place while also reducing the need to clean the throttle body as often.

K&N, AFE, AMSOIL, all offer good alternatives.

Quality Paper filters actually filter better than the filters you listed. The reason people swap them is for washability and more flow. Also, if you don't know what you are doing and over oil a reusable filter, you will suck that oil into the Maf and throttlebody.

 

[R_Sharpe]

This is my recommendation... do not throw your vehicle into neutral, you might do damge to your engine even with the revolution limiter active. Turn the key off and bring the truck to a complete stop as quickly and safely as you can.

You do realize that if you turn your key off, there is a greater chance of you crashing, right? If my HOE ever suddenly accelerates, I don't care if it hurts the engine, I'm going to throw it into neutral. If you turn the key off, you loose power steering, as well as power brakes... Plus, turning the key off could also result in the steering wheel locking into position. I would rather blow the engine in a $60,000 SUV than loose my life, but that's just me...

 

[Freedom Motorsports]

I have to disagree and agree at the same time. I agree on the fact that oil can get on the MAF and throttlebody if an oiled filter is overoiled, however, I have yet to see a paper filter that filters better, meaning down to a smaller sized particle than those mentioned. As for those mentioned, only one is an oiled filter, the K&N. The AFE is a similar gauze style filter as the K&N but not oiled. The Amsoil is a blue "Nano-fiber" made by Baldwin filters that filters smaller particles than them all. That being said, I run a K&N oiled filter myself. I have tested "quality" paper filters, AFE, K&N, AEM, Amsoil, WIX and others over the years and found that for my money I'll stay with the K&N. The Amsoil might filter to a smaller micron sized particle, but I found that if I didn't clean those every month I would be able to notice a difference in the performance of my vehicles due to flow restriction. They are also not that easy to actually get clean, the recommended process is simple enough, but not as effective imho as washing the K&N. My point there is, the fault of the oiled filters doesn't lie with the filters themselves but with the person doing the recharging. On every paper filter I have tested, every one of them wound up with a coating of dust inside the intake tube. This never happened with the AFE, K&N or Amsoil filters but did with the WIX, FRAM and a couple others. Hence the reason I mentioned those three, they are the only filters I have tested that didn't leave a dusty film inside the intake tube.

Quality Paper filters actually filter better than the filters you listed. The reason people swap them is for washability and more flow. Also, if you don't know what you are doing and over oil a reusable filter, you will suck that oil into the Maf and throttlebody.

 

[Sheriff]

You do realize that if you turn your key off, there is a greater chance of you crashing, right? If my HOE ever suddenly accelerates, I don't care if it hurts the engine, I'm going to throw it into neutral. If you turn the key off, you loose power steering, as well as power brakes... Plus, turning the key off could also result in the steering wheel locking into position. I would rather blow the engine in a $60,000 SUV than loose my life, but that's just me...

I suppose this is going to be personal preference, I would rather stop the car with manual steering and manual brakes than to blow up my engine. Manual steering is not really that bad in a moving vehicle.

Plus the steering wheel is not going to lock unless you turn the key all the way to the OFF position. And you can't do this unless the transmission is in PARK.

 

[LuSe4]

Yeah, I am going to have to disagree with you. You can not flow more without having less filtration. You cannot have both. Below is an example of what I am talking about.

http://forums.nicoclub.com/debunking-the-k-n-myth-why-oem-is-better-t180100.html

 

[Sheriff]

Hhmmmm..... if a person was to use an overoiled K&N filter, I wonder if this

might be the reason for the appearence of "burned oil" in the throttle body?

Would that excess oil get up in the throttle body and bake on?

 

[LuSe4]

It will most definitely leave oily sludge in there. Do you have a k&n?

 

[domin8]

Hhmmmm..... if a person was to use an overoiled K&N filter, I wonder if this

might be the reason for the appearence of "burned oil" in the throttle body?

Would that excess oil get up in the throttle body and bake on?

Not on the back side of the throttle body plate. The oil would be on the front side. Additionally, the maf would get clogged and eventually throw a cel. You would also have an oily residue in the intake tube.

 

[domin8]

I have to disagree and agree at the same time. I agree on the fact that oil can get on the MAF and throttlebody if an oiled filter is overoiled, however, I have yet to see a paper filter that filters better, meaning down to a smaller sized particle than those mentioned. As for those mentioned, only one is an oiled filter, the K&N. The AFE is a similar gauze style filter as the K&N but not oiled. The Amsoil is a blue "Nano-fiber" made by Baldwin filters that filters smaller particles than them all. That being said, I run a K&N oiled filter myself. I have tested "quality" paper filters, AFE, K&N, AEM, Amsoil, WIX and others over the years and found that for my money I'll stay with the K&N. The Amsoil might filter to a smaller micron sized particle, but I found that if I didn't clean those every month I would be able to notice a difference in the performance of my vehicles due to flow restriction. They are also not that easy to actually get clean, the recommended process is simple enough, but not as effective imho as washing the K&N. My point there is, the fault of the oiled filters doesn't lie with the filters themselves but with the person doing the recharging. On every paper filter I have tested, every one of them wound up with a coating of dust inside the intake tube. This never happened with the AFE, K&N or Amsoil filters but did with the WIX, FRAM and a couple others. Hence the reason I mentioned those three, they are the only filters I have tested that didn't leave a dusty film inside the intake tube.

I'll take option #3. I love my GM Accessories CAI. It has a dryflow cone filter.