Air cooled engine oil question?
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Road Warrior
Joined: Apr 2011
Posts: 1,365
Likes: 9
From: Greensboro, NC
Air cooled engine oil question?
Why can't we use aviation air cooled piston engine specd oil in air cooled motorcycle engines?
http://www.phillips66lubricants.com/...Fc9i7AodJC0AHw
http://www.phillips66lubricants.com/...Fc9i7AodJC0AHw
Last edited by Markk9; Jul 31, 2013 at 05:13 AM.
Seasoned HDF Member
Joined: May 2008
Posts: 21,175
Likes: 12,748
From: South Carolina
There is no advantage using aircraft engine oil in a motorcycle. Just because it is used in airplanes does not mean it is better. Any 20w50 auto oil will give the engine all it needs in protection.
I`ve been an aircraft mech since `74, and have never considered using aviation oil in any of my motorcycles.
I`ve been an aircraft mech since `74, and have never considered using aviation oil in any of my motorcycles.
Grand HDF Member
Joined: Mar 2007
Posts: 4,923
Likes: 266
From: Deep in the heart of New Jersey
I can't swear to it, but the reason I've heard not to use airplane oil in your Harley, is the additive package is different. Higher amounts of a given additive that might cause motor issues. Being they operate in different environments and actual conditions, I wouldn't risk it plus there are plenty of choices besides aviation oil around.,,
Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,898
From: Bedford UK
Your factory owners manual tells you to use diesel engine oil if Harley oil isn't available. There are more than enough oils available from ordinary outlets and I can see no benefit in looking further afield!
Why do you ask?
Why do you ask?
Seasoned HDF Member
Joined: May 2008
Posts: 21,175
Likes: 12,748
From: South Carolina
Turbine engine oil is completely unsuitable for use in any reciprocating engine. It would probably work in a turbocharger if the unit had its own oil system...
Nothing special about it, just made for a different use.
Nothing special about it, just made for a different use.
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