Omega Owners Forum - K&N Air Filters & fuel consumption?

MrDJ Junior Member Offline Posts: 54 Drives: Omega 2.0 CD 16V 1995	K&N Air Filters & fuel consumption? 08. Apr 2011 at 14:52 Mine had a K&N filter when I bought it. A mate said to me that he had one in a TR7 and it incresed fuel consumption rather then reduce it? Have any of you tried both (standard/K&N) in your omega and noticed an increase/decrease in mpg?
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davethediver Omega Knight Offline Posts: 1323 Blackburn, Lancs. Gender: Drives: 2.2 CD Facelift (2001)	Re: K&N Air Filters & fuel consumption? Reply #1 - 08. Apr 2011 at 16:14 General opinion is to steer clear of K and N filters as the oil in them can bugger up the MAF sensor. Standard vauxhall air filter changed regularly is the best thing for MPG as well as other service items
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doug4293 Intermediate Member Offline Posts: 264 greenock, scotland Gender: Drives: 3.0 v6 24v elite, 2.0 16v corsa, 1.9dturbo 306, gsxr600	Re: K&N Air Filters & fuel consumption? Reply #2 - 08. Apr 2011 at 16:58 iv used them befoer and doesnt make a differance to fuel
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tigers_gonads Omega Knight Offline can't spell, don't care !! Posts: 1450 hull Gender: Drives: omega 3.0 v6 cd manual estate	Re: K&N Air Filters & fuel consumption? Reply #3 - 08. Apr 2011 at 17:31 You might get a bit more if you drop something like a Green cotton filter into the airbox but never put any sort of oil on it because it will destroy your MAF
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geoff Senior Member Offline Posts: 935 thornaby,stockton on tees Gender: Drives: r reg 2.5 v6 reflection	Re: K&N Air Filters & fuel consumption? Reply #4 - 08. Apr 2011 at 17:36 k & n do a panel filter which goes in place of the standed filter inside the box so that is a better option i think
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geoff Senior Member Offline Posts: 935 thornaby,stockton on tees Gender: Drives: r reg 2.5 v6 reflection	Re: K&N Air Filters & fuel consumption? Reply #5 - 08. Apr 2011 at 17:38 http://cgi.ebay.co.uk/K-N-AIR-FILTER-VAUXHALL-OMEGA-2-0-2-2-2-5-2-6-3-0-3-2-/290... like this one
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tigers_gonads Omega Knight Offline can't spell, don't care !! Posts: 1450 hull Gender: Drives: omega 3.0 v6 cd manual estate	Re: K&N Air Filters & fuel consumption? Reply #6 - 08. Apr 2011 at 17:38 geoff wrote on 08. Apr 2011 at 17:36: k & n do a panel filter which goes in place of the standed filter inside the box so that is a better option i think Just don't oil it
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geoff Senior Member Offline Posts: 935 thornaby,stockton on tees Gender: Drives: r reg 2.5 v6 reflection	Re: K&N Air Filters & fuel consumption? Reply #7 - 08. Apr 2011 at 17:39 yeh just wash it leave to dry and then put back in jobs a good one
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cem Omega King Offline Posts: 13920 Ankara/Turkey Gender: Drives: 97 2.5 V6 Manual CD- Clio Sport	Re: K&N Air Filters & fuel consumption? Reply #8 - 08. Apr 2011 at 19:51 will bugger maf if oiled.. increases consumption..
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Nick W Junior Member Offline Posts: 160 Chatham, Kent Gender: Drives: 3.0l Elite estate, '72 Hillman Avenger	Re: K&N Air Filters & fuel consumption? Reply #9 - 08. Apr 2011 at 21:43 cem wrote on 08. Apr 2011 at 19:51: will bugger maf if oiled.. increases consumption.. And it won't filter properly if it isn't oiled. So best avoided then!
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Debs. Omega Lord Offline A denizen of The Wirral peninsula Posts: 7386 Gender: Drives: 2.5 V6 CDX Estate (1999)	Re: K&N Air Filters & fuel consumption? Reply #10 - 08. Apr 2011 at 21:51 A nice, brand-new paper filter element costs so little and flows so-well; why bother?!?!
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davethediver Omega Knight Offline Posts: 1323 Blackburn, Lancs. Gender: Drives: 2.2 CD Facelift (2001)	Re: K&N Air Filters & fuel consumption? Reply #11 - 08. Apr 2011 at 22:22 Debs. wrote on 08. Apr 2011 at 21:51: A nice, brand-new paper filter element costs so little and flows so-well; why bother?!?! Just like the vauxhall ones
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MrDJ Junior Member Offline Posts: 54 Drives: Omega 2.0 CD 16V 1995	Re: K&N Air Filters & fuel consumption? Reply #12 - 09. Apr 2011 at 09:44 umm so what are the symptons of a ruined MAF sensor?
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Erd

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Drives: 2002 2.6 V6 CDX

Re: K&N Air Filters & fuel consumption?
Reply #13 - 11. Apr 2011 at 17:39

Hi, symtoms of a knackered MAF sensor is similar to a misfire. If you unplug the connector on a faulty MAF sensor the engine will run better - at least that's how I diagnosed it on my VR6 mk3 golf.

Personally, I like the K&N filter, the standard air filters are no good if you get them wet - serves me right for driving through fords. I've had fewer MAF failures with a K&N vs paper element. New K&N's are factory oiled, so you only oil it at the service interval.

Not tried a K&N in an Omega yet.

Almost failed to mention - I used a direct replacement panel filter rather than the "performance" type

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« Last Edit: 11. Apr 2011 at 17:42 by Erd »

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Kevin Wood

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Re: K&N Air Filters & fuel consumption?
Reply #14 - 11. Apr 2011 at 18:48

The "performance" type are certainly a hiding to nothing unless you can duct cold air to it and ensure that it's isolated from warm engine bay air (otherwise you'll lose a lot of power to lower air density). Even then, the OEM panel filter is not restrictive, so you'll gain no power.

The panel type? Given that the OEM filter is both huge and cheap you will again gain nothing, and have the disadvantage that your air filter won't work unless you oil it, and risk killing the MAF if you do...

Fuel consumption will only really be affected on older carb'ed engines where the air filter might throw the tuning of the carb out. On an Omega, I'd expect to see no difference at all.

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