It's not just an oil mist. It collects moisture from the air and adds that to the mist. Look at pictures that has been posted on this topic before of the **** they dump out of catch cans. That same **** goes back into your motor if you have this issue, and as I stated in my original post, not all Harley's have this issue...

 

let's not forget that introducing oil into the combustion process, lowers the effective octane rating of the fuel you're running, being that air cooled twins run hot by nature, I'll take any opportunity I can to make it run cooler and crisper...

 

That made me look into it also. following

 

I follow Doc H. Also and was really surprised that he did that video as a HD dealer. He was certainly very honest about it.

I have only had an issue once with excess oil when I put the recommended amount in at an oil change. Had the same issue on the 96 CI TC engines also. Had to keep them about 1/2 quart under.

Now I am sure there are other issues like the excess carbon built up.

My question which Doc did not address is warranty. I thought I had read here in one of the threads that this can be a warranty issue? Is that a concern?

 

[/QUOTE]

My question which Doc did not address is warranty. I thought I had read here in one of the threads that this can be a warranty issue? Is that a concern?[/QUOTE]

Now that’d be a kick in the azz! The Moco voids your warranty because you improved the health of your engine....they should be giving you a rebate and a thank you card.

 

I've run the crankcase vapors externally on my bikes with fuel line hose, a few hose clamps and a hole drilled in the backing plate to accommodate routing - no catch can, filter, gizmos or gadgets ... just like everything from stationary engines aircraft engines - straight to the atmosphere; what am I missing?

 

Why do they not all do it? My '06 Ultra didn't, but my '12 Limited does. After a few hundred miles, my air filter collects a substantial amount of clean looking engine oil. It's not the milky looking jazz that I see in the pics you refer to..it's uncontaminated looking oil.

 

I put the DK Customs external breather on my '08 Heritage. It's peace of mind for me.

 

I've always ran a hose to the ground starting back when i rode a shovel. Always get a drop or two of that milky looking crap on the ground after having it parking in my garage.

 

I’m planning to do the external breather mod and wondering if anyone has thoughts on whether a vented dipstick would further help or would it be unnecessary. My bike, a 2017 FLHTK with 32,000 miles isn’t pushing much oil now.