Oiling air filter

The G-Series Tuning Forum is the place to discuss G35/G37 performance modifications and mechanical repair.
User avatar
Onslaught31
Posts: 55
Joined: Tue May 22, 2007 12:49 pm
Car: '03 G35 Sedan

Post

It's about that time to oil up the filter on the JWT pop charger. My question is how do you know how much oil to use? The website makes it sound like 1 gram over or under will utterly destroy the engine. I don't have the time or desire to measure out the exact grams, is there a rule of thumb or an easier standard to know how to oil it?

Also, it washes with water right?

(if there's a how-to or topic already posted, just link me up)


User avatar
SVTCOBRA
Posts: 6052
Joined: Wed Sep 03, 2003 2:26 am
Car: 2018 Q60 AWD 2023 F150 4x4 5.0 FX4
Location: LKN NC

Post

I've heard folks using the K&N cleaning kit on them.Which involves spraying a cleaning solution on it before flushing with water.

Hopefully, someone will chime in.


Q45tech
Moderator
Posts: 14365
Joined: Tue Apr 30, 2002 3:19 am
Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl

Post

Important to let things dry a few days before use [keep a spare to swap] and test for lose oil drops with paper towel.

If oil vapors contaminate MAF sensor elements, ecu will read leaner than normal and misapply the correct AF ratios to injectors.

The oil vapor acts as a heat insulator on sensors slowing down the sudden changes in readings [output voltage changes]..............sluggish and in accurate MAF.

Mostly an idle and low rpm problem.

User avatar
G_whizz
Posts: 8585
Joined: Thu Mar 09, 2006 5:34 am
Car: 2010 G37 Coupe Sport
Location: Canada eh

Post

You can order the cleaning kit or if it is accessable, I don't forsee a problem with using K&N cleaner.

Go here

http://www.courtesyparts.com/i...g.pdf

Never over oil... that's why the oil is coloured...so you can see if you already oiled that spot!


User avatar
abdoman
Posts: 58
Joined: Wed Jun 20, 2007 5:33 am
Car: 2006 G35

Post

I haven't done this yet, but before reinstalling the oil filter I was going to put the filter on my shop vac. If I over oiled the filter, hopefully I will pull off any extra oil.

joe603
Posts: 10166
Joined: Mon Nov 21, 2005 5:45 am
Car: 2014 Durango R/T
Location: Atlanta

Post

Its really not that hard, just don't over-oil the pleats. It should not be runny, or puddle.

ArizonaG35
Posts: 716
Joined: Mon Jun 18, 2007 9:41 am
Car: 2007 Infiniti G35 Journey Sedan/Premium Pkg. Platinum Graphite

Post

I just read through this thread and checked out a couple other conversations on this site about this topic...

QUESTION: How often should we clean our K & N Filters? I have a fujita short ram intake and I live in the desert so we get a LOT of dust around here... Is this something that should be done on a regular basis?

joe603
Posts: 10166
Joined: Mon Nov 21, 2005 5:45 am
Car: 2014 Durango R/T
Location: Atlanta

Post

If it looks dirty, clean it...I'd do it every 15-20k.

User avatar
szh
Posts: 18857
Joined: Tue Jul 23, 2002 12:54 pm
Car: 2018 Tesla Model 3.

Unfortunately, no longer a Nissan or Infiniti, but continuing here at NICO!
Location: San Jose, CA

Post

I am going to show my bias here, so bear with me, folks!

I just don't like the idea of having an oiled filter element in the air stream. No matter how well you think you have dried it, there is going to be micro-particles of oil coming off the filter and coating things inside.

Like the MAF, etc. This is going to lead to engine performance degradation.

My opinion (so take it with the appropriate grain of salt): stick with non-oiled air filters - OEM or appropriate quality replacement. They are cheap enough to throw away on a regular basis (12k to 15k miles) and easy to replace, etc.

The small "performance" gains you might see from these other filters simply isn't enough to justify the other potential problems ... and the gain is not high enough to matter. Now, if you were to supercharge or turbocharge, that is an different story altogether!

Z

ArizonaG35
Posts: 716
Joined: Mon Jun 18, 2007 9:41 am
Car: 2007 Infiniti G35 Journey Sedan/Premium Pkg. Platinum Graphite

Post

Well sure, there is all that risk of deterioration and loss of performance...

So I'm going to take a pre-schooler's approach at this argument...

MINES SHINIER AND MAKES MORE NOISE THAN YOURS! NANANA BOO BOO!

User avatar
SVTCOBRA
Posts: 6052
Joined: Wed Sep 03, 2003 2:26 am
Car: 2018 Q60 AWD 2023 F150 4x4 5.0 FX4
Location: LKN NC

Post

arizonaferrell wrote:MINES SHINIER AND MAKES MORE NOISE THAN YOURS! NANANA BOO BOO!


I clean mine about once a year. But, like he says, if it looks dirty, clean it.

joe603
Posts: 10166
Joined: Mon Nov 21, 2005 5:45 am
Car: 2014 Durango R/T
Location: Atlanta

Post

szhosain wrote:I am going to show my bias here, so bear with me, folks!

I just don't like the idea of having an oiled filter element in the air stream. No matter how well you think you have dried it, there is going to be micro-particles of oil coming off the filter and coating things inside.

Like the MAF, etc. This is going to lead to engine performance degradation.

My opinion (so take it with the appropriate grain of salt): stick with non-oiled air filters - OEM or appropriate quality replacement. They are cheap enough to throw away on a regular basis (12k to 15k miles) and easy to replace, etc.

The small "performance" gains you might see from these other filters simply isn't enough to justify the other potential problems ... and the gain is not high enough to matter. Now, if you were to supercharge or turbocharge, that is an different story altogether!

Z
Oil-type filters are fine as long as you don't over-oil them. The intake has engine oil from the crank breather anyway...the only part that might get a negligible amount of oil is the MAF, which should be cleaned when you clean the filter anyway. If you do the correct maintenance, you'll be fine.

ArizonaG35
Posts: 716
Joined: Mon Jun 18, 2007 9:41 am
Car: 2007 Infiniti G35 Journey Sedan/Premium Pkg. Platinum Graphite

Post

Bringing this one back... I cleaned my fujita filters a couple weeks back and oiled them per the K&N cleaning kit. I followed the directions to the "T" as they said to use a liberal amount of oil on the filter pleats. I sprayed the oil and let them sit overnight. There was some excess oil on the filters so I dabbed it "Dry" and re-installed. Ever since, I've noticed a little decrease in performance. My car seems to not run as smoothly as it did before.

When I checked the engine oil last week, I noticed that there was some filter oil dripped down on the frame from the over oiled filter. I got a paper towel and blotted the bottom of the filter and it was SOAKED with filter oil. That being said, I'm pretty sure I over-oiled. What should I do? Should I re-clean the filter with a new cleaning kit and just oil less this time? Should I make an attempt to clean the MAF? If so, what's the safest meathod for cleaning the MAF? Help!



Dave

User avatar
gwoods
Posts: 3896
Joined: Fri Jul 27, 2007 11:57 am
Car: 2013 Infiniti M37x
1999 Nissan Altima SE limited 5spd
1992 Miata (soon to be turbo)
1965 Cj-5 with 327 v8
2012 Toyota Sequoia Limited
Location: Phoenix

Post

Hey brother I wish you would have called me!

straight from Fujita's web site

"FUJITA SUPER FLOW HIGH PERFORMANCE AIR FILTER™

Fujita’s Super Flow High Performance Air Filter™ was designed to maximize air flow. The high gloss Fujita air horn enables air to enter the intake chamber in a high velocity spiral motion. The base of the filter was technically engineered to ensure a smooth and rapid passage of the air into the intake chamber. Cleaning the air filter is simple and can be done using soapy, lukewarm water, and let air dry. The Super Flow High Performance Air Filter™ contains a synthetic fiber that does not contain any oil. "

If you oiled yours I would follow the cleaning instructions from Fujita.

Now if you still don't get your performance back let me know and I will come over and help you clean your MAP sensors.

Jeff

ArizonaG35
Posts: 716
Joined: Mon Jun 18, 2007 9:41 am
Car: 2007 Infiniti G35 Journey Sedan/Premium Pkg. Platinum Graphite

Post

Okay... now I know what I'm doing tonight when I get home... I didn't automatically associate the performance decrease to the filter oil that's what took a couple weeks. It has gradually gotten worse over the last week... Just feels like sporatic mis-firing... i'll clean it tonight SANS OIL and let you know... Thanks man!Dave

User avatar
gwoods
Posts: 3896
Joined: Fri Jul 27, 2007 11:57 am
Car: 2013 Infiniti M37x
1999 Nissan Altima SE limited 5spd
1992 Miata (soon to be turbo)
1965 Cj-5 with 327 v8
2012 Toyota Sequoia Limited
Location: Phoenix

Post

If it still is sluggish I would clean the sensors with electronic parts cleaner you can buy it from most autoparts stores. Do not clean the sensors with anything else.

I think your probably okay...

I'm speculating that the oil is blocking air flow and making your car run a little rich which would cause a loss in performance.

ArizonaG35
Posts: 716
Joined: Mon Jun 18, 2007 9:41 am
Car: 2007 Infiniti G35 Journey Sedan/Premium Pkg. Platinum Graphite

Post

You think regular old Palmolive will do the trick on the filters? Really sudsy or not so much?

User avatar
gwoods
Posts: 3896
Joined: Fri Jul 27, 2007 11:57 am
Car: 2013 Infiniti M37x
1999 Nissan Altima SE limited 5spd
1992 Miata (soon to be turbo)
1965 Cj-5 with 327 v8
2012 Toyota Sequoia Limited
Location: Phoenix

Post

yep dish soap should be the best at cutting that oil. I would do repeated baths with medium suds or soak them overnight. The overnight soak would probably be the best. Then in the morning just run medium pressure water from the tap across the filters until no more soap comes off. 10 min on your back porch should dry them in this 0 humidity 90 degree weather we are having.

Don't scrub the filters either just let the soap do the work.

BTW I have NEVER cleaned mine. I run the shop vac over them when I clean the car though.

If you do clean the sensors with electronic parts cleaner don't spray them full blast. I'd hold them at arms length and give them short medium squirts from the can. Let them dry. Then clean them again. And NO HUFFING LOL

User avatar
gwoods
Posts: 3896
Joined: Fri Jul 27, 2007 11:57 am
Car: 2013 Infiniti M37x
1999 Nissan Altima SE limited 5spd
1992 Miata (soon to be turbo)
1965 Cj-5 with 327 v8
2012 Toyota Sequoia Limited
Location: Phoenix

Post

Not needing oil was one of the things that led me to purchase the Fujita intake system over a cheaper intake.

On my Hemi I ran dual filters into a single throttle body. About every 6,000 miles I had to clean the filter oil off the throttle body (and no I was not over oiling them). It sucked!

ArizonaG35
Posts: 716
Joined: Mon Jun 18, 2007 9:41 am
Car: 2007 Infiniti G35 Journey Sedan/Premium Pkg. Platinum Graphite

Post

Thanks for the advice... I'll probably hold off on the MAF cleaner til I see how the clean filters work...

MMMMMMMMMM.... HUFFING!

User avatar
gwoods
Posts: 3896
Joined: Fri Jul 27, 2007 11:57 am
Car: 2013 Infiniti M37x
1999 Nissan Altima SE limited 5spd
1992 Miata (soon to be turbo)
1965 Cj-5 with 327 v8
2012 Toyota Sequoia Limited
Location: Phoenix

Post

sounds like a good plan.....

User avatar
Sentientbydesign
Posts: 6768
Joined: Wed Feb 02, 2005 8:21 am
Car: 03 Evo VIII - 330 AWHP
05 Subaru Legacy GT Stg 2 - Sold
05 G35 6MT Coupe - 278 WHP - Sold
04 WW Evo VIII - 302 AWHP - Ex's
96 I30 - Sold
Contact:

Post

Jeff,

Thanks for making mention of the Fujita not being oiled. That gives me another reason to get in in lieu of a z-tube/stillen/JWT setup. I HATE oil on my filters. It makes a messy goo.

For those of you who haven't tried an AEM dry-flow, you have no idea what you're missing.

joe603
Posts: 10166
Joined: Mon Nov 21, 2005 5:45 am
Car: 2014 Durango R/T
Location: Atlanta

Post

For those with JWT: I use the K&N filtercharger kit. comes with a cleaner and the oil to reapply. Autozone or a similar parts store will sell it. If you have access to a compressor, blowing it out will speed up the process.

User avatar
gwoods
Posts: 3896
Joined: Fri Jul 27, 2007 11:57 am
Car: 2013 Infiniti M37x
1999 Nissan Altima SE limited 5spd
1992 Miata (soon to be turbo)
1965 Cj-5 with 327 v8
2012 Toyota Sequoia Limited
Location: Phoenix

Post

I would not use an air compressor to blow out the filter... it could make small tears in the material. A shop vac is okay though

User avatar
telcoman
Posts: 5763
Joined: Sat Jul 08, 2006 11:30 am
Car: Tesla 2022 Model Y, 2016 Q70 Bye 2012 G37S 6 MT w Nav 94444 mi bye 2006 Infiniti G35 Sedan 6 MT @171796 mi.
Location: Central NJ

Post

szhosain wrote:I am going to show my bias here, so bear with me, folks!

I just don't like the idea of having an oiled filter element in the air stream. No matter how well you think you have dried it, there is going to be micro-particles of oil coming off the filter and coating things inside.

Like the MAF, etc. This is going to lead to engine performance degradation.

My opinion (so take it with the appropriate grain of salt): stick with non-oiled air filters - OEM or appropriate quality replacement. They are cheap enough to throw away on a regular basis (12k to 15k miles) and easy to replace, etc.

The small "performance" gains you might see from these other filters simply isn't enough to justify the other potential problems ... and the gain is not high enough to matter. Now, if you were to supercharge or turbocharge, that is an different story altogether!

Z


I agree 100%



My Air Filter is dirty after 8k miles. The replacement is $10Why in the world would I need a air filter with oil that is going to $uck up my MAF?My G's performance is excellent .So much better than my old 1958 Ford

Telcoman

User avatar
Sentientbydesign
Posts: 6768
Joined: Wed Feb 02, 2005 8:21 am
Car: 03 Evo VIII - 330 AWHP
05 Subaru Legacy GT Stg 2 - Sold
05 G35 6MT Coupe - 278 WHP - Sold
04 WW Evo VIII - 302 AWHP - Ex's
96 I30 - Sold
Contact:

Post

telcoman wrote:


I agree 100%



My Air Filter is dirty after 8k miles. The replacement is $10Why in the world would I need a air filter with oil that is going to $uck up my MAF?My G's performance is excellent .So much better than my old 1958 Ford

Telcoman
Because some of us would rather not add an air filter to the landfills every 2-3 months. We also like knowing that we can make a one time investment of $60 and begin saving by the second year.

I also don't like oiled filters. Ergo my comment regarding the AEM filter.

ArizonaG35
Posts: 716
Joined: Mon Jun 18, 2007 9:41 am
Car: 2007 Infiniti G35 Journey Sedan/Premium Pkg. Platinum Graphite

Post

I'm very surprised by this recent discovery that Fujita Filters do not require oil... I was totally under the impression that Fujita Filters were just K&N's with a Fujita label on them... This is good to know and it probably explains my recent decrease in performance. The clogged filter would explain the computer running rich...

User avatar
rn79870
Posts: 5415
Joined: Sat Nov 24, 2007 8:54 am
Car: 2008 G35 & 2005 Vette C6 vert.

Post

I'm just surprised that you did anything "liberal," as in "liberal application of oil." Had you stuck to your conservative self you would have been just fine! This outta teach you to try to be a liberal!

joe603
Posts: 10166
Joined: Mon Nov 21, 2005 5:45 am
Car: 2014 Durango R/T
Location: Atlanta

Post

So while we're talking about this...what about the JWT filter? That's a K&N, oil-style filter right? Got me all nervous now

ArizonaG35
Posts: 716
Joined: Mon Jun 18, 2007 9:41 am
Car: 2007 Infiniti G35 Journey Sedan/Premium Pkg. Platinum Graphite

Post

I don't know... I'd check your manufacturers website to make sure you don't need to oil...



Dave


Return to “G35 and G37 Engine, Drivetrain & Tuning”