I think any car would be happy to have any kind of liquid lube in it if it was 2 qts low.
Some that come to mind......
KY Jelly
Bacon Grease
Crisco
Dirty french fry grease
Self made lube
Olive oil (Any vegatable oil)
WD-40
Teenager face grease
Popcorn butter
Scented candle oils
Paul Newman's Italian Dressing (Any vinaigrette)
ETC.