UL91 for Robinsons
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Join Date: Jul 2011
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UL91 for Robinsons
With some local airfields electing only to stock UL91, I would appreciate feedback from anyone using it on R22B2 (Lycoming 360J)
It seems Lycoming happy with it for nearly 2 years...but how about experience...
It seems Lycoming happy with it for nearly 2 years...but how about experience...
Join Date: Aug 2000
Location: 5 nM S of TNT, UK
Age: 79
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I am using W80 and I can't find a service letter on the subject so I will ask the factory. It seems to be quite a bit cheaper than 100LL at airfields so I will check what the difference is on bulk delivery price. I also have a Rotax engined fw aircraft and UL91 is intended for that engine.
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That would be helpful.
I also have a FW PA28 with Lycoming 320J
My engineer checked that and gave me OK with W80 oil.
The Robbo site from 2012 says UL91 is usable in R22 and 44.
I`ve used UL91 also in Rotax on a shadow micro.
My guess is that its actually usable with either oil in both Lycoming engines, just would like more concrete evidence before putting in the 22.
Many thanks
I also have a FW PA28 with Lycoming 320J
My engineer checked that and gave me OK with W80 oil.
The Robbo site from 2012 says UL91 is usable in R22 and 44.
I`ve used UL91 also in Rotax on a shadow micro.
My guess is that its actually usable with either oil in both Lycoming engines, just would like more concrete evidence before putting in the 22.
Many thanks
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I asked Robinson and just got the following reply-
Page 3 of Lycoming Service Instruction 1070S dated 24 April 2013 cautions
the operator to ensure "...Lycoming oil additive LW-16702, or an equivalent
finished product such as Aeroshell 15w50, must be used." Link:
http://www.lycoming.com/Lycoming/SUP.../ServiceInstru
ctions.aspx
If you look up Aeroshell 15w50 it says that the Lycoming LW-16702 is already added to it in manufacture. So I guess that is the answer to the original question.
Page 3 of Lycoming Service Instruction 1070S dated 24 April 2013 cautions
the operator to ensure "...Lycoming oil additive LW-16702, or an equivalent
finished product such as Aeroshell 15w50, must be used." Link:
http://www.lycoming.com/Lycoming/SUP.../ServiceInstru
ctions.aspx
If you look up Aeroshell 15w50 it says that the Lycoming LW-16702 is already added to it in manufacture. So I guess that is the answer to the original question.