Anything special I should have checked?

The vehicle, a 1991 Mazda MPV, has been very well maintained--I assume the timing belt was changed long ago, but I should go through the maintenance records anyway.

I'm thinking a tune-up might be in order, but since it is fuel-injected, I dunno what that might entail.

Suggestions?

As long as you've been keeping up with oil and filter changes, it should keep running for a good bit longer.

It's definetely a good idea to check when the cambelt was last changed and the interval because that could spell the end of the engine, especially if it's an interferance type.

As for the fuel system, run some Seafoam/Redex through to clean any gunk out the injectors. If it's a diesel (and not a common rail), get the injectors calibrated.

Also make sure there's no splits in the vacuum hoses, which can develop with vibration and age.

Does the distributor cap and rotor look to be in good condition? How about the wires?

Do a t-belt sooner than later.
take a good look at the water pump when you get the t-belt covers off.
Does it have all wheel drive? If so you may want to check out the vacuum lines that control the front differential ,they are known to get dry rot and come off at an inopportune time. for some reason Mazda liked to use vacuum for a lot of things that don't really need to.

I would be looking for gasket degradation and be for changing out all of them if possible, unless its a diesel or propane, or natural gas.

Piston rings, crankshaft bearings, all the belts, get the valves lapped if they look bad i guess, check all the bolts for rust/wear/plastic deformation, etc etc. Doesnt need to be major, but a few thing's like bolts become brittle after a while.

Yeh mazda are a bit dodgy some times :P

But they go all right, and even old ones go well still. Jap's know how to make stuff last.

But they go all right, and even old ones go well still. Jap's know how to make stuff last.

Amen, you see lots of old Subie wagons running around up here. My wife's 1987 broke down, and I got her ANOTHER 1987.

BTW, thanks all for the advice.

Just a postscript--during the recent extreme cold weather, the power steering went out due to sudden fluid loss; next day, the belt for the alternator and water pump broke and I ALMOST made it to the shop before the engine boiled over. Fixing everything cost around $300, and the car now runs like new.

Meanwhile, I have an appt for a free diagnostic check at Midas for other stuff.

I hope you put a new timing belt in as well.
If thats breaks you are fucked my friend:(