Re: portable plastic fuel tank
I had a plastic tank in the '80's that split and leaked gas all over. The gauge on my 2009 OEM tank never worked correctly, plus it leaked around the fitting from the get-go. I replaced it with a Moeller, but it didn't meet my requirements either. Even when both were "functional" they expanded and contracted so much from temperature changes that I was never comfortable.
I currently run steel tanks made in 1953, 1964, 1970 and 1984. None have ever had water inside them and I don't let them sit in the elements. None have a spot of rust inside. All have had the gauge floats replaced due to E10, and the '53 has had all the gaskets replaced. Parts are cheap and readily available. My 2009 OB currently runs a '64 OMC tank.