octane booster

[SR33fshr]

Boat has been in storage since mid October - asked half dozen guys if they add octane booster and got split responses. Some concern about burning valves... (big block 454's, +300 hours)

 

[goblue]

We always put our boat away with a full tank of non-e10 gas in mid October. We start using it in mid April and run on the storage fuel until earlly June. We have never used fuel additives other than Stabil in the fall and have never had a problem.