I've tried the 100LL avgas in a 235 and it ran like crap. The Farmall M loved it.
Around here now, we have good access to both 87 and 89 octane non-ethanol gas (serving the Marine community). My 261 runs equally well on both octanes.
~ John
A kid raised on Hotwheels, Matchbox and Tonka cannot be reasonably expected to own only one vehicle as an adult.
1949 Chevrolet 3804 In the Legacy Gallery | In the Gallery Forum 1973 IH 1310 Dump 1963 Kaiser M38A1 2001 International/AmTran RE3000 "Skoolie" 2014 Ford E-350 4x4 (Quigley)