I am the second owner, 258k miles, all original/stock 91 HF with 155/80R13 tires.
50 psi in the tires
Removed passenger wiper arm,
5w30 oil (wanted 0w20 or 5w20, but got a good deal on the 5w30)
Pennzoil Synchromesh in the transmission (Works AWESOME)
Removed the spare tire and jack
Smaller 9 pound AGM battery (plenty of power for constant EOC)