Oil break down
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Tourer
Joined: Oct 2009
Posts: 250
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From: RIO GRANDE, TEXAS
Oil breakdown
Does anyone know how much will Harley regular oil 20/50 breakdown after 5000 miles at 240* oil temperature. Basically what I want to know is if it is ok to keep the oil for 5000 miles as per Harley specs. I live in south Texas and it get very hot. Your input will be greatly appreciated.
Last edited by flipbel; Aug 10, 2013 at 03:59 PM.
Club Member
Joined: May 2007
Posts: 145,895
Likes: 821
From: 40 miles Northeast of Indy..
The oils have been talked about for Yrs in here..
Just use a good brand Syn 20w-50 in all three holes and U'll be fine...
It ain't Rocket Science and its just a Harley... the same as any other MC or vehicle.
.
Just use a good brand Syn 20w-50 in all three holes and U'll be fine...
It ain't Rocket Science and its just a Harley... the same as any other MC or vehicle.
.
Thread Starter
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Tourer
Joined: Oct 2009
Posts: 250
Likes: 0
From: RIO GRANDE, TEXAS
thanks for your input, i know its not rocket science, i was not asking about tran and prim oils, i was not asking for types of oils, and my question was not answered, but thanks anyway.
Cruiser
Joined: Feb 2013
Posts: 151
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From: Kentucky
Cruiser
Joined: Oct 2007
Posts: 173
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From: Detroit, MI
I would suggest sending your used 5000 mile oil in for analysis to one of those oil labs. I have never done this but then you would know for sure if it has any life left in it and what shape it is in.
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Tourer
Joined: Oct 2009
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From: RIO GRANDE, TEXAS
i have heard something about those labs.
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Cruiser
Joined: Apr 2012
Posts: 210
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From: Arkansas
I don't know anything about Harley oil breakdown, I don't use HD oil, one reason I don't is Harley doesn't make oil, the lowest bidder to bottle the oil in HD bottles with in there specs is where the oil comes from. Anyways sorry got off track, I have used BlackStone Laboratory to do my oil analysis , it cost $25 bucks to find out what your oil is doing, what metals are in it, everything you would want to know, go to there website they will send you a container for the oil free, and yes it can be mailed, its not considered haz-mat because of the amount of oil you mail them is just a small amount, not that you asked but I use 50 wt Rotella in mine, always have, always will.
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,144
Likes: 11,219
From: San Diego, CA
I've used Blackstone Labs to test oil in a twin diesel boat and a supercharged Vette.
Their site explains the process, it'll give you good info.
http://www.blackstone-labs.com/free-test-kits.php
Always better to know, than to guess......
Their site explains the process, it'll give you good info.
http://www.blackstone-labs.com/free-test-kits.php
Always better to know, than to guess......