i disagree that sudden and total failure is likely.

there is a good chance if it was running well when parked it will start right up with not too much problem.

the glow plugs need to work correctly and it must be getting fuel. it is not a bad idea to pull the glow plugs or injectors and squirt in some light oil in each cylinder. just a couple of squirts and then turn it over til the oil pressure comes up and then put the glow plugs or injectors back in.

some fungicide in the fuel for good measure and clean oil and fuel and air filters.

if the glows are inoperable it can be started by pulling providing it is getting fuel and has enough compression.

my favorite machinist and i started a pontoon body diesel once that had been sitting a lot longer than five years. and the fuel in the tank was fine.

once you get it running you will need to check hoses belts and brakes. pretty good chance some calipers will be stuck too.

good luck

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.