Chewed up 5th gear main...
Cruiser
Joined: Apr 2008
Posts: 185
Likes: 0
What we need to help determine this is testimonials from people Running Redline for high miles with out issue.
Ultimate HDF Member
Joined: Nov 2007
Posts: 6,975
Likes: 12
From: NJ
Why do we put 75-140 weight oil in our trannys when the MoCo recommends 20-50?.
Seems if a tranny was built in such a manner that a thinner oil provided better lubrication it would only follow that a heavier oil could be too thick to get into certain areas and wouldn't drain the metal wear particles as well.
I think I'll dump the heavy stuff in our bikes and go back to a stock weight oil.
Seems if a tranny was built in such a manner that a thinner oil provided better lubrication it would only follow that a heavier oil could be too thick to get into certain areas and wouldn't drain the metal wear particles as well.
I think I'll dump the heavy stuff in our bikes and go back to a stock weight oil.
Thread Starter
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Former Sponsor
Joined: Jan 2009
Posts: 19,364
Likes: 40
From: Los Angeles, CA
Why do we put 75-140 weight oil in our trannys when the MoCo recommends 20-50?.
Seems if a tranny was built in such a manner that a thinner oil provided better lubrication it would only follow that a heavier oil could be too thick to get into certain areas and wouldn't drain the metal wear particles as well.
I think I'll dump the heavy stuff in our bikes and go back to a stock weight oil.
Seems if a tranny was built in such a manner that a thinner oil provided better lubrication it would only follow that a heavier oil could be too thick to get into certain areas and wouldn't drain the metal wear particles as well.
I think I'll dump the heavy stuff in our bikes and go back to a stock weight oil.
Road Warrior
Joined: Mar 2007
Posts: 1,396
Likes: 146
From:
Why do we put 75-140 weight oil in our trannys when the MoCo recommends 20-50?.
Seems if a tranny was built in such a manner that a thinner oil provided better lubrication it would only follow that a heavier oil could be too thick to get into certain areas and wouldn't drain the metal wear particles as well.
I think I'll dump the heavy stuff in our bikes and go back to a stock weight oil.
Seems if a tranny was built in such a manner that a thinner oil provided better lubrication it would only follow that a heavier oil could be too thick to get into certain areas and wouldn't drain the metal wear particles as well.
I think I'll dump the heavy stuff in our bikes and go back to a stock weight oil.
Gear whine in a tranny is not a defect. I remember the school bus whining through the gears when I was a kid. The old 4 speeds in muscle cars whined, it's normal. If people are putting heavier oil in their trannies to reduce the whine they could be creating a real problem where none existed. When gears wear they howl, thats a problem that has been masked by using heavier lubes, even saw dust, for years.
Thread Starter
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Former Sponsor
Joined: Jan 2009
Posts: 19,364
Likes: 40
From: Los Angeles, CA
Viscosity for gear oil is measured differently than engine oil. I think 20-50 engine oil and 75-140 gear oil are pretty close. The Service Manual for my '07 Bagger specifies use only Formula + in the transmission. No mention of 20-50 engine oil. High quality oils are available to meet the specific needs of engines and trannies these days. I prefer to take advantage of that and not use the one size fits all marketing of Harley's Syn 3.
Gear whine in a tranny is not a defect. I remember the school bus whining through the gears when I was a kid. The old 4 speeds in muscle cars whined, it's normal. If people are putting heavier oil in their trannies to reduce the whine they could be creating a real problem where none existed. When gears wear they howl, thats a problem that has been masked by using heavier lubes, even saw dust, for years.
Gear whine in a tranny is not a defect. I remember the school bus whining through the gears when I was a kid. The old 4 speeds in muscle cars whined, it's normal. If people are putting heavier oil in their trannies to reduce the whine they could be creating a real problem where none existed. When gears wear they howl, thats a problem that has been masked by using heavier lubes, even saw dust, for years.
Thanks!
Drew
Road Master
Joined: Nov 2009
Posts: 1,218
Likes: 0
From: Yakima WA
The V-Twin product with shockproof is Shockproof heavy in a new wrapper...
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Road Master
Joined: Feb 2008
Posts: 1,012
Likes: 1
From: SoCal
Had to delete my previous post, as I just did some research and saw that this stuff is the Heavy Shockproof stuff repackaged.
I've been running this for a while now.
I think I may change if this is 75w/250...boy it gonna be a biiiaatch flushing out this stuff.
I've been running this for a while now.
I think I may change if this is 75w/250...boy it gonna be a biiiaatch flushing out this stuff.
Last edited by JayDee5150; Aug 28, 2010 at 12:06 PM.
