I have heard that putting sugar in my fuel tank may lead to my vans not working anymore. This is an outcome I am looking to avoid.
I use these vans to transport children, who I usually pick up from sites about a few miles out. I would be really miffed if those vans were disabled in such a way that they were not able to make it to those children.
Are there any other actions I should avoid taking with my vans? I really wouldn’t want to cause damage to them in such a way that they would fail before the children got inside them.
Don’t bother with sugar. That’s mostly myth, it’s not soluble in gas. It will eventually cause issues, you cannot predict the point at which it will fail.
The cheap solution would be water and whatever you want to dissolve in it. Yes, that can be sugar, salt, etc…but the point is plain water will stop the vehicle from working immediately, necessitate dropping the fuel tank, purging the fuel system, and possibly damaging the fuel pump. You can carry water with you anywhere vs carrying bags of sugar or salt.
Plain old water.