I've noticed something strange about my Voyager 1994 3L engine.
After about 1000 miles, the car will start, sometimes to stall out
repeatedly, going 20-30 mpg or slow speeds or whatever.

Out of desperation, I would put in about 1/2 quart of oil, and the
problem disappeared.

This has happened on about 5 occasions so far.

Is the engine that sensitive? The dipstick is notorious for hard to
read, even if letting it sit outside the engine for 1/2 hours and then
put back in and the engine is cold.

I assume the engine oil is down slightly, 1/2 quart at most.

But why so sensitve?

Is this a sign of anything?