AMSOIL in all 3 holes? - Road Glide Forums
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post #1 of 11 (permalink) Old 06-02-2019, 09:15 PM Thread Starter
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AMSOIL in all 3 holes?

I have read where people are using the 20-50 w synthetic for oil, transmission and cranny. Does anyone here use the same oil like that? Thanks.

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post #2 of 11 (permalink) Old 06-03-2019, 12:30 AM
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some do , but syn in the primary will usually slip the clutch , and syn or motor oil itself is not gear oil ..

So I use motor oil in the motor , my aftermarket clutch plates suggest light weight non synthetic motor oil , and the transmission has gears in it , so I use .............. wala gear oil ..

And after doing this all my life , I DO NOT follow the recommended fluid change ..

I change the motor and primary every oil change and the transmission , every other oil change ..

Oil is cheep ..

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post #3 of 11 (permalink) Old 06-03-2019, 07:28 AM
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I run AMSOIL in all 3 holes... BUT.... SPECIFIC fluids. Amsoil sells Trans oil and Primary oil... they are separate and DIFFERENT.
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post #4 of 11 (permalink) Old 06-06-2019, 08:17 PM
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I run Amsoil but as Spazz said use motor, trans, and primary oils. I do not put motor oil in all holes.


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post #5 of 11 (permalink) Old 06-07-2019, 04:12 PM
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Quote:
Originally Posted by wessguffey View Post
I have read where people are using the 20-50 w synthetic for oil, transmission and cranny. Does anyone here use the same oil like that? Thanks.
Yes, i use Amsoil for all three as recommended by the dealer. I have had no problems at least yet.

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post #6 of 11 (permalink) Old 06-07-2019, 04:25 PM
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Many do. As for SYN making clutch slip old myth that never dies. It does not. There are better option than 20/50 engine oil but not reason you can't.


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post #7 of 11 (permalink) Old 06-08-2019, 06:06 AM
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My dealer is happy to pay SYN3 in all 3 holes

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post #8 of 11 (permalink) Old 06-08-2019, 06:08 PM
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I use REDLINE all 3 holes every 5K. I'm hard on my throttle and all and when I check for metal ect a bit of dusting I see very little so I’m a happy camper. Use what you feel comfortable with.
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post #9 of 11 (permalink) Old 06-08-2019, 08:26 PM
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I use redline in engine and trans-Harleys top oil which is a blend in primary-change all 3 every 5000 miles
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post #10 of 11 (permalink) Old 06-09-2019, 08:13 AM
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I have tried probably 25 different combinations in the three holes, including 20/50 in all three. I'm not an expert but I feel no difference regardless of what I use and I have never had an engine or transmission issue. Next oil change I'm trying Harley's new gear oil in the tranny and primary just for the hell of it.
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