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Old Feb 19, 2014 | 05:47 PM
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Why not? That is one of the weights called for in you owners manual.
 
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Old Feb 19, 2014 | 06:03 PM
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Modern 20/50 will stand up to the heat.
Not a dam thing wrong with straight 50 or 60 in summer.
Zinc was a good thing until the EPA decided they did not like it and forced reductions.
 
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Old Feb 19, 2014 | 06:21 PM
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Originally Posted by texashillcountry
That is what I use.
I have been using Valvoline Race oil for a good while now. Great price on the race oil too. If Tex likes it it's got to be good.
 
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Old Feb 19, 2014 | 07:56 PM
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Originally Posted by aces&8s
I have been using Valvoline Race oil for a good while now. Great price on the race oil too. If Tex likes it it's got to be good.

 
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Old Feb 20, 2014 | 02:07 PM
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Originally Posted by aces&8s
Anything wrong with Valvoline race oil? It has a higher Zinc compound.??
What sort of racer are you going to put it in?!
 
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Old Feb 20, 2014 | 07:53 PM
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Originally Posted by grbrown
What sort of racer are you going to put it in?!
The kind that goes fast down at the curb, kinda like my women.
 
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Old Feb 21, 2014 | 10:13 AM
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I remember back in the 50's Harley oil was either 105 wt. or 120 wt. but I think it was figured like aircraft oil where it was actually 55 or 60 wt. Believe it or not I use to run transmission oil in my old "45" flat head, and it ran just fine with it. I was just a freshman in highschool and could not afford to ride 50 miles to the Harley shop just for oil. If I remember right I think they also had 140 wt. which was 70 wt. I know HD had 70 wt. untill just a few years ago. I don't know when they dropped it.
I am 73 years old so you will have to take into account my memmory. LOL
 
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Old Feb 21, 2014 | 10:55 AM
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Originally Posted by Jim Kraft
I remember back in the 50's Harley oil was either 105 wt. or 120 wt. but I think it was figured like aircraft oil where it was actually 55 or 60 wt. Believe it or not I use to run transmission oil in my old "45" flat head, and it ran just fine with it. I was just a freshman in highschool and could not afford to ride 50 miles to the Harley shop just for oil. If I remember right I think they also had 140 wt. which was 70 wt. I know HD had 70 wt. untill just a few years ago. I don't know when they dropped it.
I am 73 years old so you will have to take into account my memmory. LOL
Lot of things we did with the older ones you would not dare do now.
Even the gear boxes need a lighter freer flowing lube now.
 
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Old Feb 22, 2014 | 01:43 PM
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Yeah Smitty, the newer bikes are nice but sometimes I think we shot our selves in the foot. I still miss that old 45 as it was so forgiving of a shade tree teenage Harley mechanic. The thing seem to run no matter how I treated it.
 
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Old Feb 23, 2014 | 07:26 AM
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Originally Posted by aces&8s
Anything wrong with Valvoline race oil? It has a higher Zinc compound.??
Nope , zinc is a essential lubricant that helps with bushings and Babbitt bearings
 
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