heh kremit.

seriously, any dino oil will be fine for a day. if its not certified i woudl be wary, but it cant hurt much and is definately better than no oil. especially if you are only gonna put 20 miles on it. i would definately run 5w30 instead of 10 though.
pennziol, citgo (found @ dollar tree for...yeah, you guessed it, $1.00 per quart). and a 1.99 oil filter and go for 20 miles, do a motor flush and replace the oil with mobil 1 or equvalent (valvoline SynPower is cheaper in some cases). and a good oil filter.