Man, I gotta say, After installing RP 20w-50 full syn in the crankcase(and ATP in the primary) the scoot really seems to glide along more easily. And I don't hear the clattering of the lifters and valves quite as much. It's kinda pricey, but so far, I think it was a good decision.

 

Were you running syn previously and how many miles before the change?

 

yep, I was running mobil1 full syn 20w-50. Ran it for 3670 miles. And I was running the same for primary. BTW, I don't work for, nor do any of my friends, relatives or enemies for the maker of the Royal P! I ouuta get paid for this...

 

I've seen where many guys love RP. I've never used it as it's not readily available around here.

 

Thought about using it also as i can get it relatively cheap from work but im still not completely sold yet. Thanks for the input though, may give it a try.

 

I use it in the sportster
seemed to quiet it a LITTLE
but it is available here and few bucks cheaper than
the HD Synthetic

 

Replaced my tranny gear oil with RP from Mobile 1. Shifts better and is quieter. Also finds Neutral much easier now. I'm happy.

 

I have an 07 road king with 4400 miles on it. I am considering RP max cycle for my 5000 mile service. Any more input on this would be helpful in making my decision. Also can I use it in the engine, primary and trans??
Greg

 

My 07 RKC is about to hit 5000 as well. maybe I will give RP a shot. Do they make the gear oil as well?

 

I have checked RP web site and I am still not sure what to about the trans and primary oil. Hopeing someone here can help with that. I used RP in a Road Star and had great results with it.