Diesel-powered tow trucks.
Even the diesel pickups are having trouble. We put the treatment in all our diesel pickups and still the fuel was gelled too much to start the truck. Several of our friends got theirs started and were on the road when they quit. I know our ‘newer’ pickups don’t have the plug-in engine heater. Our older ones that do fired right up.
Nope. My diesel Nissan XD has been incapacitated since yesterday despite diesel fuel treatment and a block heater. Low fuel pressure is all that she tells me