K&N Filters
06-11-08, 06:00 PM
#2
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It did for me, Ive heard both ways from people but for me I def got a few more miles per gallon. I would def get the recharge kit for it. You can clean it and then re-oil it. I do mine every 5k miles.
06-12-08, 12:05 PM
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Any noticeable performance or mpg changes would be around <0.5% (And that goes both ways too). You'd be much better off with just replacing the paper filters when your service record tells you. Additionally, the k&n filters let more debris in your engine.
06-12-08, 12:49 PM
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06-12-08, 03:54 PM
#7
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Problem is the way the K&N panel filter is coated. When I used to use them in my RX300, which is a similar engine design to the one in the ES. I had this issue with the red diode on the MAF getting coated. I finally sprayed just a very light amount on the front of the filter facing the air flow and the problem was less. Then I wouldn't get the P0171 error.
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06-12-08, 07:07 PM
#8
had one in my 2002 ES and used it for two years and one in by Pontiac SSEi for four years before that. I cleaned and re-oiled them every 20,000 miles At first I thought they did increase mileage, but in both cases I switched back to the stock air filters and saw no change in mileage whatsoever.
The potential problem with the rechargable filters comes when you re-oil them. After cleaning the filter, I would spray the oil on both sides and then let it lay flat on paper towels over night to make sure all the excess drained off. If not, this would end up on the MAF sensor and cause more expensive problems.
The mileage improvement with these types of filters comes with close to wide open throttle for extended periods of time. I don't drive anywhere near that so my mileage improvement was marginal if any at all. The stock type filter is just easier and safer.
just my 2¢
steviej
The potential problem with the rechargable filters comes when you re-oil them. After cleaning the filter, I would spray the oil on both sides and then let it lay flat on paper towels over night to make sure all the excess drained off. If not, this would end up on the MAF sensor and cause more expensive problems.
The mileage improvement with these types of filters comes with close to wide open throttle for extended periods of time. I don't drive anywhere near that so my mileage improvement was marginal if any at all. The stock type filter is just easier and safer.
just my 2¢
steviej
06-13-08, 08:00 AM
#9
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This may just be me, but the idea of reusable air filter just freaks me out. Seems like with the problem that could be had, your better off just going with the standard Fram air filter.
06-13-08, 08:26 AM
#10
Lexus Champion
hot wire MAF will get oily buildup, and small particles also build up on there. best to quick clean those every time you pull the normal air filter, or more thoroughly spraying with a K&N installed, with rubbing alcohol spray mist, or those specific cleaners for it they sell at advance auto parts.
the filters make no difference to fuel economy. I will explain the big picture shorter version here: air filter paper is going to require larger throttle which in turns means less resistance, while k&n cotton require less throttle which means throttle plate is less which is more resistance.
only at virtually no relative manifold vacuum [near or full torque conditions] would you see any improvement.
the air filter paper are best for dust and sand. K&n is good at everything else about the same but less so at filtering that. Sand and dust cause major engine wear. Imagine one sand grain grinding up and down in your combustion chamber, messing it up, the rings, valves, etc. then , what if it gets past rings, into the oil. then it gets in the oil pump and wears it out. then, hope the filter catches it. oh wait, cold start , the filter is by-passes, so then the sand gets sent to the main bearings under 75 psi. then the main bearing gets scored.
I like paper air filter.
the filters make no difference to fuel economy. I will explain the big picture shorter version here: air filter paper is going to require larger throttle which in turns means less resistance, while k&n cotton require less throttle which means throttle plate is less which is more resistance.
only at virtually no relative manifold vacuum [near or full torque conditions] would you see any improvement.
the air filter paper are best for dust and sand. K&n is good at everything else about the same but less so at filtering that. Sand and dust cause major engine wear. Imagine one sand grain grinding up and down in your combustion chamber, messing it up, the rings, valves, etc. then , what if it gets past rings, into the oil. then it gets in the oil pump and wears it out. then, hope the filter catches it. oh wait, cold start , the filter is by-passes, so then the sand gets sent to the main bearings under 75 psi. then the main bearing gets scored.
I like paper air filter.
06-13-08, 08:41 AM
#11
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hot wire MAF will get oily buildup, and small particles also build up on there. best to quick clean those every time you pull the normal air filter, or more thoroughly spraying with a K&N installed, with rubbing alcohol spray mist, or those specific cleaners for it they sell at advance auto parts.
the filters make no difference to fuel economy. I will explain the big picture shorter version here: air filter paper is going to require larger throttle which in turns means less resistance, while k&n cotton require less throttle which means throttle plate is less which is more resistance.
only at virtually no relative manifold vacuum [near or full torque conditions] would you see any improvement.
the air filter paper are best for dust and sand. K&n is good at everything else about the same but less so at filtering that. Sand and dust cause major engine wear. Imagine one sand grain grinding up and down in your combustion chamber, messing it up, the rings, valves, etc. then , what if it gets past rings, into the oil. then it gets in the oil pump and wears it out. then, hope the filter catches it. oh wait, cold start , the filter is by-passes, so then the sand gets sent to the main bearings under 75 psi. then the main bearing gets scored.
I like paper air filter.
the filters make no difference to fuel economy. I will explain the big picture shorter version here: air filter paper is going to require larger throttle which in turns means less resistance, while k&n cotton require less throttle which means throttle plate is less which is more resistance.
only at virtually no relative manifold vacuum [near or full torque conditions] would you see any improvement.
the air filter paper are best for dust and sand. K&n is good at everything else about the same but less so at filtering that. Sand and dust cause major engine wear. Imagine one sand grain grinding up and down in your combustion chamber, messing it up, the rings, valves, etc. then , what if it gets past rings, into the oil. then it gets in the oil pump and wears it out. then, hope the filter catches it. oh wait, cold start , the filter is by-passes, so then the sand gets sent to the main bearings under 75 psi. then the main bearing gets scored.
I like paper air filter.
06-13-08, 09:07 AM
#12
after having the K&N n my 00 ES for about a week the car wouldnt start. eventually i got it to start but it wouldnt stay started unless my foot was on the throttle. I figured it may have been the filter so i took out the TB. Sprayed down the MAF & TB with cleaner and the car worked good as new. After that I have gone back to nothing but paper filters in the ES. Id rather not have a ruined MAF
06-13-08, 09:45 AM
#13
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after having the K&N n my 00 ES for about a week the car wouldnt start. eventually i got it to start but it wouldnt stay started unless my foot was on the throttle. I figured it may have been the filter so i took out the TB. Sprayed down the MAF & TB with cleaner and the car worked good as new. After that I have gone back to nothing but paper filters in the ES. Id rather not have a ruined MAF
Your car wouldnt start because of the K&N air filter? thats a little hard to believe but, Is this a common problem ONLY found on ES models? I dont get why the car wouldnt start because it had a K&N air filter. Ive had the K&N filter in a Ford,Mitsubishi, and 2 Lexus's. I have a K&N in my GS350, I have 4k miles on the car now and still no problem.