RE: Tower Hobbies 15% airplane fuel ?
Tower fuel meets OS requirements for oil content which is at least 18%. Most fuels that are pink have a blend of 80% synthetic and 20% castor, but thats no rule, just an observation. Tower fuel is cheaper than my LHS and i usually dont have enough cas to buy the several required cases to get better prices. Get towers fuel in quarts to avoid the hazardous shipping fee.