One of our club members came out after a 2 year layoff. He had a huge fuel leak around the tank stopper of one of his planes. The stopper had lost all of its flexibility. You might want to check the stopper. I'd also replace the fuel lines inside and outside the tank. The tiniest pinhole can give you fits at the field.



One point about your fuel:
OS recommends a minimum oil content of 18% for the 46FX.

You can add oil to your fuel.

Adding 4 ounces to a full gallon:
Oil.......original 16.0000% new value 18.5455%
Nitro.....original 15.0000% new value 14.5455%
Alcohol...original 69.0000% new value 66.9091%

Adding 3 ounces to a full gallon:
Oil.......original 16.0000% new value 17.9237%
Nitro.....original 15.0000% new value 14.6565%
Alcohol...original 69.0000% new value 67.4198%