I was going to pick up a quart of oil to keep on my bike just in case I needed it. I was reading the manual and it spoke of oil for diesel engines I think. So I asked the dealer and they told me I needed to get it from them and that they made no recommendations other than that....Well I know that when I had the 10k Mile sevice I had the oil changed and they put in synthetic oil so I need someone to tell me what kind I should pick-up at a auto parts store....

Thanks Ahead of Time....

 

if you were to use harley Syn, in all 3 holes , you would only need to carry 1 bottle of that

 

Yeah, but Harley seems to have cooled on that idea. I wondered about using a 20w50 oil in the trans. While they recommended it in all 3 places on my 05 Classic, my owners manual and service manual on my 06 Ultra now state the Formula Plus gear and primary lube in the trans and primary. I use Mobil 1 VTwin 20w50 which you can get at AutoZone for less than the HD Synth3 at the dealer.

 

My dealer told me I could use Syn in all three holes and that is what I have been doing since my break in

 

This question is discussed all the time. You'll find lot's of opinions out there.

For me: Amsoil 20w50 in the Engine and Primary. Amsoil severe gear 75W-90 in the tranny.

Mobile 1 Vtwin 20w50 is also very popular.

 

What dstocton said: "Mobil 1 VTwin 20w50 which you can get at AutoZone".

If you already have synthetic in it just get a quart at AutoZone to top off.

 

OIL????? NOT AGAIN........
[sm=deadhorse.gif]

 

Syn3 is crap, not even a true syn. oil, and harley has now backed off putting it in the trans, and is back to telling people to use their formula 1 for trans and primary.

 

Interesting thing. I went the other way and put Redline products in all three holes. I asked the dealer's service manager what I should use if I need to top off and can't get my hands on any Redline. He told me a top qulaity synthetic like Movil 1 V-Twin would be fine, but just make sure I don't use Syn 3. I wish I'd have questioned him a little further on that but I was in a bit of a hurry at the time. Anybody know why that may be?

 

I like the Mobil 1 v-twin 20-50 in the engine and primary. Belray 80-140 in the trans.
Just my opinion.