Primary oil question
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Cruiser
Joined: Apr 2013
Posts: 197
Likes: 3
From: Texas
Primary oil question
I was getting ready to perform a 3 hole fluid change and had a question. I thought I had some formula + left over from the last change but I don't. I only bought 1 qt this time around so my question is can I use the 32oz of formula + and use mobile 1 20w50 to top it off at the 38oz required?
Road Master
Joined: Nov 2006
Posts: 1,164
Likes: 401
From: Port Coquitlam B.C.
I did. I bought a qt of Redline MTL for my last change thinking I still had some left over from the previous change, which I did not. I topped it up with some HD 20w-50.
When I first got my last bike and the synthetic hype was in full song I read a ton of information about mixing oils and never found a single article that concluded you can't mix the oils. They even sell it blended.
When I first got my last bike and the synthetic hype was in full song I read a ton of information about mixing oils and never found a single article that concluded you can't mix the oils. They even sell it blended.
Ultimate HDF Member
Joined: Jan 2008
Posts: 6,532
Likes: 132
From: SoCal
You are fine to mix. Be careful to not overfill. Don't go by what the manual says in measured amount, put in 1qt and check visually as per manual. This isn't rocket surgery, its a primary. You could run only a quart for 10,000 miles and you'd be fine, most dealers only put in a quart. I only put in a liter of Bel Ray primary fluid.
Thread Starter
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Cruiser
Joined: Apr 2013
Posts: 197
Likes: 3
From: Texas
Yeah, I figured the dealer would only use the quart and call it good. I figured I've kinda mixed them before anyway when I initially went to using the formula + from syn3/mobile 1.
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Seasoned HDF Member
Joined: Feb 2008
Posts: 23,000
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No wonder some seem to have compensator issues and others never do.
The 2016 with narrow primary call for 34 oz wet fill. So yes if you went with 32 oz you would be fine but for one that calls for 38oz and you cut it to 32 oz's that is a major short fall.
The 2016 with narrow primary call for 34 oz wet fill. So yes if you went with 32 oz you would be fine but for one that calls for 38oz and you cut it to 32 oz's that is a major short fall.
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Ultimate HDF Member
Joined: Jan 2008
Posts: 6,532
Likes: 132
From: SoCal
The oz's mean nothing. Only the height does. Bottom of the clutch basket, right to bottom. Oh still on my original compensator, running 1 liter in the primary on my 2008.
