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Sportster Oil Weight

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Old 03-27-2010, 11:46 PM
grat grat is offline
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Default Sportster Oil Weight

My 1980 sportster calls for hd medium heavy oil
this is what i usually use, but money is tight right now and i cant afford the hd brand oil
what weight should i use if i bought another brand, like mobil 1 or castrol
some guy recomended 20w50, someone else said 5w20
what do you guys think, what is the right oil weight for a 1980 ironhead 1000?
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Old 03-28-2010, 01:49 AM
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OldFenderGuy OldFenderGuy is offline
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If it were me, I'd run the Castrol GTX 20W-50 in the Ironhead, and change it along with the filter at around 2,500 mile intervals.

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Old 03-28-2010, 02:04 AM
Needmore Oils Needmore Oils is offline
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I would run AMSOIL 20W-50 Motorcycle Oil

Last edited by Grover; 03-28-2010 at 06:19 AM. Reason: Edited by Admin to remove a prohibited link.
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Old 03-28-2010, 02:46 AM
grat grat is offline
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Location: Houma, Louisiana
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20w50 it is then
I'll probly go with the castrol as that's what I use in my truck
thanks for the replies
happy riding
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