Listen to what Rommer is saying here, the 2 types of fuel don't play well together, Get it down to the bottom and make sure you carry spare filters and a tupperware container that you can use to put the old fuel filled filter in it.ea.
This happened to me at sea and I had to scramble to find one of the wifes tupperwares to hold the fuel and filter in. She was not happy. Better to plan ahead for these kind of things.