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Old 12-12-2013, 07:12 AM   #1
bikefreak47 OP
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Mobil 1 ATF Synthetic for clutch???

I stumbled across a post on another KTM (SuperDuke) site stating Mobil 1 Synthetic ATF is what the poster used as his 2008 SD clutch fluid. He stated that he's put 25,000 trouble free miles in heavy city traffic with this ATF. I've got a quart of Mobil 1 Syn ATF in my shop that I'd consider using if I can get some more positive feedback on this application. Any other KTM owners have experience with Mobil 1 ATF in their clutches?
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Old 12-12-2013, 07:17 AM   #2
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Works fine. I have it in my Adv, SE (1) and Husaberg.
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Old 12-12-2013, 08:33 AM   #3
Off Road Ryder
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Don't wait do it now. I just use the regular Tranny fluid, IMO.much better than the mineral oil.
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Old 12-12-2013, 08:41 AM   #4
gearheadE30
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Finally, a use for all these bottles of ATF that I don't have a use for!
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Old 12-12-2013, 08:55 AM   #5
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To clarify, the OP is talking about the clutch master cylinder/ oil line and not the clutch itself. Sometimes things get interpreted incorrectly :)
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Old 12-12-2013, 10:20 AM   #6
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Quote:
Originally Posted by ADVill View Post
To clarify, the OP is talking about the clutch master cylinder/ oil line and not the clutch itself. Sometimes things get interpreted incorrectly :)
I understood perfectly.
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Old 12-12-2013, 10:34 AM   #7
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I previously used 2.5 w Motorex mineral based fork oil and the fluid would discolor and have a sludge like consistency after a few months, similar to Magra Blood. It could be the mineral based oil reacting with the Aluminum clutch reservoir?

I've since changed to Mobil 1 synthetic ATF and so far it's holding up better than the other fluids. The clutch feel is slightly firmer with Mobil 1 ATF but, that's ok.
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Old 12-12-2013, 10:49 AM   #8
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advice I got from Enduro Engineering was use ATF in clutch master cylinder, been doing it since 2001 no problems...
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Old 12-12-2013, 11:01 AM   #9
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Works great in my SE and my 640ADV. Been using it for years now
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Old 12-12-2013, 12:08 PM   #10
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Thanks for all the feedback guys. I was concerned that there could be some negatives, like swollen seals, or seals turning to mush if I strayed from the rare as hens teeth, Magura Blood. It'll get flushed and changed in my '08 SD this spring when I regain feeling in my fingers.
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Old 12-12-2013, 01:36 PM   #11
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This subject is interesting as I have several bottles of (older) synthetic ATF in my garage and draining the mineral clutch line oil twice a year is a pain.
Now there is ATF and ATF!

When I look at the Castrol page there is quite a choice:
http://www.castrol.com/castrol/secti...tentId=7081186

Same for Mobil 1:
http://www.mobiloil.com/USA-English/...on_Fluids.aspx

Which ATF is suitable for feeding our KTM 's? Synthetic Dexron OK or not?
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Old 12-12-2013, 02:02 PM   #12
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Quote:
Originally Posted by bikefreak47 View Post
Thanks for all the feedback guys. I was concerned that there could be some negatives, like swollen seals, or seals turning to mush if I strayed from the rare as hens teeth, Magura Blood. It'll get flushed and changed in my '08 SD this spring when I regain feeling in my fingers.
Mobil-1 synthetic ATF is rumored to be a slightly heavier weight than the top-secret formula that is Magura Blood. Of course you have to ask what color Magura blood are you comparing to as there are two, red and blue, sold in identical bottles Not even Magura could tell me what the difference was.

Use the Mobil-1, good stuff
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Old 12-12-2013, 02:36 PM   #13
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does it matter if it's type F, dextron, anything like that? I guess I don't think mine is actually synthetic, so it will continue to take up space.
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Old 12-12-2013, 04:17 PM   #14
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I don't like the feel of ATF, it is a little thicker (about 7 wt) than the original 'blood'. The clutch lever doesn't just snap back. I don't have any ATF sitting around.

I've been using 2.5 wt fork oil. This system doesn't get hot, so this oil works well. I've got lots of fork oil sitting.
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Old 12-12-2013, 04:19 PM   #15
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I also have used fork oil
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