Yes, you can use plastic tanks. I assume your boat does not have a built in
tank but rather "portable" metal 6 gallon tanks. If the tanks set outside
in the sun all the time - the plastic ones will not hold up as many years
due to
UV aging. Over time they will fade, warp, and possibly crack. However,
plastic tanks are a lot easier to find these days and are cheaper. Should
last 5 years or more w/ no problems.

--
Tony
my boats at http://t.thomas.home.mchsi.com

"Andy" wrote in message
m...
I am looking at replacing the gas tank on my 1991 Sylvan Pontoon.
Currently it has the metal gas tank. I was looking at maybe getting a
couple plastic ones. Do they make these for pontoons? Is there
anything I should look for? I was looking at overtons but couldnt tell
if those tanks would work or not. Please let me know if I can use the
plastic gas cans instead of the metal ones.

Thanks for your help.

Andy