Join Date: Mar 2007
Location: New England
Thanked 7 Times in 7 Posts
Rep Power: 14
You've got only two options..............
Fill it up with more diesel to further dilute the gas/diesel mix you already have or drain your tank. If you only truly only have a gallon of diesel in 40+ gallons, it is probably ok. But if you're not sure, I'd drain most of your tank, and then refill.
Of course the safest plan for the motor and your state of mind is to drain your tank.
If you liked my advice/response, give me some rep points. If you didn't......well what do you expect, it was free.