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Old Dec 17, 2009 | 03:59 PM
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Default 1979 flh
Can you use 20w-50 oil in it or does it have to be strait 50 weight?
 
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Old Dec 17, 2009 | 04:25 PM
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use straight 50
 
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Old Dec 18, 2009 | 06:35 AM
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People use both. Couple guys up north run multi with no problems. The outside temps vary more.
Myself I have never run anything but 50.
 
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Old Dec 18, 2009 | 06:53 AM
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Originally Posted by 77HDFX
People use both. Couple guys up north run multi with no problems. The outside temps vary more.
Myself I have never run anything but 50.
20/50 is Okay, as always it is up to individual preference.
 
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Old Dec 18, 2009 | 10:15 AM
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Can be either. I run 20-60w syn in my 48. It makes it a lot easier to kick over when it's cooler out.
 
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Old Dec 18, 2009 | 04:25 PM
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In S. FL for the last 37 years I've run either straight 60 or 70. The old Harley 105 was a 60 weight.
 
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Old Dec 19, 2009 | 03:54 PM
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I have run 20-50 in my shovel for about 25 years. I do have solid lifters and a sealed primary. I don't know if 20-50 will work with the shovel hydraulic lifters. It starts easy when cold, doesn't smoke or use oil, never had an engine failure.
 
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Old Dec 19, 2009 | 04:42 PM
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I've used 20/50 Power Blend (called 360 now) in my '81 FXEF since the day I brought it home new from the dealer. It's your decision, 50 0r 60 might be better in the south, but no problems in 30 seasons of riding.
WUZFUZ
 
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Old Dec 20, 2009 | 08:06 AM
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Thank you to all who responded.I appeciat the help. I just rebuilt the motor and its time for the frst oil change. Don't want to screw it up too much time restoring the bike. will have pic's soon."Keep the Shiny side up rubber side Down."
 
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Old Dec 20, 2009 | 08:06 PM
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I use 25/60 in mine. Been running it for years without a problem running Velva-touch lifters.
 
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