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Old May 1, 2010 | 04:49 PM
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Smile Chain case oil
A real quick question here. As it is storming here, I decided to go ahead and change the oil in my 05 UC. I have a quart of both Mobil 1 75/90W synthetic and Redline 80W shockproof. Which should I use in the chaincase?
 
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Old May 1, 2010 | 04:52 PM
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If you're talking about the primary chain case, I wouldn't use either.
 
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Old May 1, 2010 | 04:55 PM
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Originally Posted by Route66rider
A real quick question here. As it is storming here, I decided to go ahead and change the oil in my 05 UC. I have a quart of both Mobil 1 75/90W synthetic and Redline 80W shockproof. Which should I use in the chaincase?
Gear oil goes in the transmission. You would be better off to just use motor oil in you primary. I use Redline Primary oil. Some guys use motor oil and some even use ATF. Do a search to learn more.
 
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Old May 1, 2010 | 04:59 PM
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Originally Posted by sifularson
Some guys use motor oil
Yep.I use Valvoline 20/50 motorcycle oil.
 
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Old May 1, 2010 | 05:05 PM
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Originally Posted by sifularson
Gear oil goes in the transmission. You would be better off to just use motor oil in you primary. I use Redline Primary oil. Some guys use motor oil and some even use ATF. Do a search to learn more.
OK, so you are saying that I should use the same Mobil 1 V-Twin 20-50W oil in the primary chaincase as I used in the motor?
FWIW, I used the Mobil 1 V-Twin 20-50W in the motor & Redline V-Twin with shockproof in the transmission.
 
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Old May 1, 2010 | 05:07 PM
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Originally Posted by Route66rider
OK, so you are saying that I should use the same Mobil 1 V-Twin 20-50W oil in the primary chaincase as I used in the motor?
Yes that will work.
It's printed on the label.
 
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Old May 1, 2010 | 05:08 PM
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Originally Posted by Route66rider
OK, so you are saying that I should use the same Mobil 1 V-Twin 20-50W oil in the primary chaincase as I used in the motor?
FWIW, I used the Mobil 1 V-Twin 20-50W in the motor & Redline V-Twin with shockproof in the transmission.
That would work fine. HD is shipping their motorcycles with Syn3 in all 3 orifices. I feel the Syn 3 is too light for the tranny, but that's just me.
 
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Old May 1, 2010 | 05:33 PM
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Originally Posted by sifularson
Gear oil goes in the transmission. You would be better off to just use motor oil in you primary. I use Redline Primary oil. Some guys use motor oil and some even use ATF. Do a search to learn more.
Still new to this Harley maintenence. The Redline 80W gearoil is marked as being specially formulated for wet clutches...
 
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Old May 1, 2010 | 05:39 PM
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The 80w is to heavy for the chaincase save it fot the trans. Get some atf or motor oil and use it.

Just my .02 cents
 
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Old May 1, 2010 | 05:54 PM
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b&m trick shift automatic trans fluid type f is a good alternative.most of the racers in top fuel and funny car use it in their clutches.
 
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