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- Thu Jan 12, 2012 9:34 am
- Forum: Hangar Chat
- Topic: UL91
- Replies: 17
- Views: 19975
UL91
I was hoping to be able to run our Lycoming 320 -d (160hp) on the new UL91 fuel but see that it's not listed as approved by the LAA. The Lycoming Service Instruction SI1070Q list includes alternative fuel UL91/96 which I guess must be Hjelmco Avgas 91/96 UL which is not the same as the Total UL91. H...