I have read the posts on synthetic oil. I'm getting ready to start using synthetic oil in my 2005 1200 sportster. I just need some clarification if possible as a lot of answers seem to be geared towards specific bikes. For my bike....I'm thinking Amsoil is the most popular...so DO I get the standard Amsoil 20-50 that Amsoil has and use it for both the oil and primary? There isn't any other place on a sportster to use the synthetic oil, right? Is there a difference between the amsoil 20-50 and what I've seen Syn3? Maybe that is just HD's type of synthetic oil? I guess I'm just being extra careful.

 

You are correct. The AMSOIL 20/50 is all you need for the Engine, Primary and transmission, if it has one. I am not to familiar with the sportsters but I do know the oil works just fine in all three hole. Syn3 is Harleys brand of Synthetic oil but it is not made by Harley. I can assure that your engine will run a lot better and quieter on the AMSOIL. If you need help finding AMSOIL let me know and I will help you

Bear

 

What he said.....my 2005 Sporty ran great on synthetic. BTW, the Amsoil is better than the Syn3 in my opinion.

 

Great...Thanks....I don't think I'd need to buy any different oil filter then do I?

 

Can't go wrong with Amsoil, Been useing it for a number of years now, I won't use anything else.

 

Great...thanks.. I did change everything out with Amsoil, beats me, it seems my bike shifts easier and sounds better! I've decided to become an Amsoil dealer!