Quote:
Originally Posted by nimblemotors
I've fabricated a new gas tank and its mounting. The tank is a little 2.5gallon HDPE plastic tank, it weighs almost nothing.
This car better get at least 60mpg to make a 120mile trip.  |
Erm... what was that tank originally used for?
Plain HDPE isn't really intended for long term storage of gasoline. Gas tanks made of HDPE are treated to resist solvents. If they aren't treated, the gasoline will slowly seep into the plastic...
While I like innovation on the cheap, I personally wouldn't feel comfortable skrimping here. For <$100, you can buy a fuel tank intended for gasoline in sizes ranging from 1 quart to 5 gallons from Summit Racing or similar sites.