Sportster oil for engine & trans/primary

[G-MAN]

Originally Posted By: Jjones
Yes the only rating is gl-1.Would there be any benefit to use this over a 50w motor oil?Would most of today's 50w motor oil meet the gl-1 specs?I know motor oil does not use gl ratings but the oils that claim to be ok do not have a gl-1 rating


I would use the GL-1 gear oil. There are a lot of additives in a fully formulated motor oil that are not needed in the transmission, and some that could affect clutch performance.

But honestly, for $10 every couple of years, just use Harley's Formula+. My Sportster shifted like butter with it and clutch take up was smooth and linear.

 

[Jjones]

Originally Posted By: G-MAN
Originally Posted By: Jjones
Yes the only rating is gl-1.Would there be any benefit to use this over a 50w motor oil?Would most of today's 50w motor oil meet the gl-1 specs?I know motor oil does not use gl ratings but the oils that claim to be ok do not have a gl-1 rating


I would use the GL-1 gear oil. There are a lot of additives in a fully formulated motor oil that are not needed in the transmission, and some that could affect clutch performance.

But honestly, for $10 every couple of years, just use Harley's Formula+. My Sportster shifted like butter with it and clutch take up was smooth and linear.


One more thing....my local Harley shop has lots of the sport/trans fluid in stock.How does it compare to the formula+

 

[G-MAN]

Originally Posted By: Jjones
Originally Posted By: G-MAN
Originally Posted By: Jjones
Yes the only rating is gl-1.Would there be any benefit to use this over a 50w motor oil?Would most of today's 50w motor oil meet the gl-1 specs?I know motor oil does not use gl ratings but the oils that claim to be ok do not have a gl-1 rating


I would use the GL-1 gear oil. There are a lot of additives in a fully formulated motor oil that are not needed in the transmission, and some that could affect clutch performance.

But honestly, for $10 every couple of years, just use Harley's Formula+. My Sportster shifted like butter with it and clutch take up was smooth and linear.


One more thing....my local Harley shop has lots of the sport/trans fluid in stock.How does it compare to the formula+


Never used it. But keep in mind Formula+ was introduced concurrently with the new helical cut gears in the 06 transmission. There has to be a reason why Harley did not continue the old lubricant in the new transmission.

 

[Bob_LOF_TECH]

what about filters? any body have a suggestion or recommendation for filter? use the hd?

 

[Propflux01]

Some will recommend the HD filter above all other. I have used the Bosch 3330 for years without any issues in both the 883, and my big twin 88.

 

[Bob_LOF_TECH]

thanks Was looking at online at o'rielly's found wix #51348 and #57348(CHROME) thinking of using this they also sell the mobil 1 vtwin which seem to be most recommended.

 

[Lost1]

Use the Wix myself- zero problems in my TC96...

 

[cbear]

I currently use the Purolator ML16822.

 

[G-MAN]

Originally Posted By: Lost1
Use the Wix myself- zero problems in my TC96...


Yep, got one on my FXDC right now.