I blew out several medium range glow plugs in an early ASP 91 on 15 % fuel, until I read here that it was high compression engine and liked FAI fuel. And that it does. I mixed Klotz Techiplate with speed shop methanol and it runs great, doesn't blow plugs, run erraticzlly, or get hot and detonate. Fuel is way less expensive.

Sincerely,

Richard