All things in moderation.
I confess, I did beef up my hurricane stores especially, gasoline.(Possible Iranian problems).
When congress was wringing their hands over Katrina, did you hear that idiot congressman ask Mike Brown why FEMA couldn't have been there in New Orleans to make sure everybody had at least 5 gallons of gas to get out of town?
PRI-G for gasoline
PRI-D for diesel
Differ from other fuel stabilizers in that they can restore degraded fuel as well as preserve. West Marine has it as well as on line sources.