Air filter oil substitute - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

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post #1 of 14 Old 11-07-2007, 04:45 AM Thread Starter
 
Join Date: May 2007
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Air filter oil substitute

Hey all. I'm currently on the road in Syria and I just ran through a wicked sandstorm. The foam air filter on my KLR 650 needs cleaing in a bad way, but I'm out of air filter oil and I can't find any for sale. What should I use as a substitute? Everyone here suggests gear oil, which I can buy. Will this be a problem if I have to run it for a while? Also, would it be better to run a dirty filter with the proper oil, or a clean filter with gear or engine oil?

Thanks.

(If you want to see some pictures or a trip report, it's all on my website... click the link below!)
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post #2 of 14 Old 11-07-2007, 07:21 AM
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I'd go with gear oil if I couldn't find air filter oil. You're looking for something sticky and something that won't just drain out of the filter like typical motor oil will.

Clean the filter, let it dry, and stick the filter in a zip loc bag, or something on the line. Dump a bit of oil in the bag and squeeze it into the filter for a while, and then carefully wring the excess oil from the foam.

By the way, we want photos of your ride, please?
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post #3 of 14 Old 11-07-2007, 08:29 AM
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Even a straight 40wt or 30wt oil will work in a pinch to get you going until you can find some filter oil.
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post #4 of 14 Old 11-07-2007, 01:30 PM Thread Starter
 
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Thanks for the replies, guys. I should make it to Damascus with what I have and hopefully find filter oil there.

Oh, and as for pictures, due to the "shakey" connections I've been finding on the road, I'm only really putting trip reports and photos on my website right now (one site is a lot to maintain sometimes!) Check it out. Maybe I'll post some ride reports and photos on other sites when I return to Canada.
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post #5 of 14 Old 09-02-2016, 04:37 PM
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first of all K&N states on their industrial spec sheet that the air filter oil in the Aerosol can must weight at least 7.5 cSt (centistokes) at 100 C. A blend of 80W and 85W SAE oil matches that. I've been using 85W straight oil for several years with no issues. I also use Krud Kutter (same metasilicate cleaner) as the expensive K&N air filter cleaner. Just make sure to rinse any degreaser even K&N well before adding oil - otherwise the oil will be saponified and converted to fatty acids then will gunk up your engine.

SAE Motor Oil Grade cSt @100C
0W -3.8
5W 3.8 - 4.1
10W 4.1 - 5.6
15W -5.6
##W-20 9.3 - 12.5
##W-40 12.5 - 16.3
##W-50 16.3 - 21.9
##W-60 21.9 - 26.1

SAE Gear Oil Grade cSt @100C
70W 4.1+
75W 4.1+
80W 7+
85W 11+
90W 13.5 - 24.5
140W 24.0 - 41
250W 41+
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post #6 of 14 Old 09-02-2016, 05:21 PM
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Can you get chain saw oil? That stuff is tacky.

Can you mix chain lube with motor oil and make a tacky filter oil?



.
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post #7 of 14 Old 09-02-2016, 06:08 PM
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Quote:
Originally Posted by BigUglyGreenKLR View Post
Can you get chain saw oil? That stuff is tacky.

Can you mix chain lube with motor oil and make a tacky filter oil?



.
Chain lube is 14 cSt or double that of K&N. They add tackifiers and solvent to then convert the oil to a more semi-solid ocnsistency after application. K&N oil left on a surface stays liquid.
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post #8 of 14 Old 09-02-2016, 08:09 PM
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Quote:
Originally Posted by sixfitty View Post
first of all K&N states on their industrial spec sheet that the air filter oil in the Aerosol can must weight at least 7.5 cSt (centistokes) at 100 C. A blend of 80W and 85W SAE oil matches that. I've been using 85W straight oil for several years with no issues. I also use Krud Kutter (same metasilicate cleaner) as the expensive K&N air filter cleaner. Just make sure to rinse any degreaser even K&N well before adding oil - otherwise the oil will be saponified and converted to fatty acids then will gunk up your engine.

SAE Motor Oil Grade cSt @100C
0W -3.8
5W 3.8 - 4.1
10W 4.1 - 5.6
15W -5.6
##W-20 9.3 - 12.5
##W-40 12.5 - 16.3
##W-50 16.3 - 21.9
##W-60 21.9 - 26.1

SAE Gear Oil Grade cSt @100C
70W 4.1+
75W 4.1+
80W 7+
85W 11+
90W 13.5 - 24.5
140W 24.0 - 41
250W 41+
sixfitty and All Other readers,

K & N air filter oil is for Surgical Cotton GAUZE type air filters ONLY!

DO NOT USE K & N Air Filter oil on a Foam air filter!! It is TOO thin to stay in the FOAM! And not very 'sticky'. It will allow the finer, talcum powder dust to pass thru and into your engine.

On KLR650 OEM foam air filter, 10W40 engine oil Will Work! Straight Grade 40, 50, or even 90 does Not migrate around the air box as much.
Coarser Foam Air filters, like UNI-Filter work better with the 'Tackier/Stickier' oils like UNI, Bel-Ray, PJ-1, Maxima, etc.

pdwestman
Modify at "YOUR OWN RISK"!

Still riding my 1987 KL650-A1. 85,000+ miles & counting
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post #9 of 14 Old 09-02-2016, 10:31 PM
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What about grease mixed with motor oil?

Maybe some AK47 gun oil would work. I am sure there is a lot in Syria at this time.
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post #10 of 14 Old 09-03-2016, 04:38 PM
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Quote:
Originally Posted by pdwestman View Post
sixfitty and All Other readers,

K & N air filter oil is for Surgical Cotton GAUZE type air filters ONLY!

DO NOT USE K & N Air Filter oil on a Foam air filter!! It is TOO thin to stay in the FOAM! And not very 'sticky'. It will allow the finer, talcum powder dust to pass thru and into your engine.

On KLR650 OEM foam air filter, 10W40 engine oil Will Work! Straight Grade 40, 50, or even 90 does Not migrate around the air box as much.
Coarser Foam Air filters, like UNI-Filter work better with the 'Tackier/Stickier' oils like UNI, Bel-Ray, PJ-1, Maxima, etc.
So is Maxima not the stuff to use on the OEM filter? I ask because that's what I serviced mine with. Should I clean it off and use oil? Or is it OK to continue with the Maxima sticky stuff....And yeah its sticky.
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