This excess lead contributes to a host of problems, including fouled plugs and sticking valves. Randy Schmerheim of Traverse City, Michigan purchased our 30,000th mogas STC for this Cessna 150. Petersen Aviation has been doing research on the use of automotive fuel for aircraft since 1983. Forty-eight different engine types and more than 100 airframes have been approved since we began conducting our tests. We also hold several Canadian STA's for auto fuel.
Auto fuel is safe for use in approved aircraft.
Over sixteen years of use has clearly demonstrated the suitability of this fuel for general aviation aircraft. Many foreign countries accept U.S. auto fuel STC's or have approved them in conjunction with localized Flight Manual Supplements. The use of auto fuel is the best thing that has happened to general aviation in the last two decades. In an era when the cost of flying has inflated to ridiculously high levels, automotive fuel STC's have done more than anything else to reduce those costs.