Learning the HARD way...
Join Date: Jan 2007
Location: Boston / Ft Myers Area
Thanked 195 Times in 191 Posts
Rep Power: 11
Safe - Yes
Expensive - also yes! - although in the US, you will be paying for the highway taxes (about $0.75/gallon) that Marine diesel is exempt from.
I beleive that you can also use home heating oil (although this is probably illegal).