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Unleaded Avgas Cure or Curse

The announcement last October by the University of North Dakota (UND) flight school that it was terminating its year-long test of Swift UL94 unleaded avgas and returning to 100LL came as a shock and disappointment to many in the industry. UND's maintenance director cited evidence of "significant" exhaust valve/seat recession in some of its Lycoming-powered Piper Archers. Is this a major setback for piston GA's transition to unleaded fuel? In this webinar, Mike Busch explores what we know about valve recession and lead, and discusses how much of an issue this is likely to be. Savvy Aviation offers Professional Maintenance Services to owners of General Aviation aircraft, such as: SavvyMx (Professional Maintenance Management including Prebuy Services), SavvyQA (Expert Consulting), SavvyAnalysis (Engine Data Analysis) and Breakdown Assistance. Savvy also publishes a monthly newsletter with lots of interesting information for the general aviation enthusiast; subscribe to it at https://www.savvyaviation.com or text the word "Savvy" to 33777. This webinar was hosted by the Experimental Aircraft Association (EAA).