Normally, that 200 gallons would last 400 days.
But, if we don't need any oil fired backup heat this winter, and the A7 works okay..
and we use a gallon per month for testing, it's going to last 16 years.
I'll be 82 when we run out!
Humm, I might have to get some kind of diesel fuel preservative.
http://www.marineengine.com/products...s/1922254C.jpg