HI I have a 2003 Eletra glide ultra classic 100 year. I need to completely change all fluids on the bike. Everyone recommends Mobile 1 V twin 20-50. I want to make sure its ok to put in tranny and primary ?
I have the service Manuel but it wants Specific fluids in each. Harley's Advice is Syn 3 in everything. Forum advice please .
Thxs
jayson , Ca

 

Yes, it's safe in all 3 holes.

 

Hey, newbie, there's an oil section. Do a search and sit down for a long read on oil.

 

I have an 03, use Amsoil 20 W 50 in all three holes, lots of hard miles not one problem.

 

AH, an oil thread!

Many use Syn3 (or equivalent) in all 3 holes. You'll prob get 1000 opinions on this here....

Have a torque wrench handy, don't overtorque drain plugs! Esp on that year the primary plug is kinda tiny I believe- easy to overtorque. Buy a new set of 3 to have on hand.

HD filters are fine. You'll get 1000 opinions on that too.

Pretty sure the primary case has 2 gaskets: a circular pancake/paper plate one and an elliptical one. They are re-useable. To fill the primary you'll need to pull one or the other. Though if they've never been replaced, buy each to have on hand.