Update, September 5 2017: As of September 3rd my Father was driving home and someone started passing in a passing lane but did not relent and then Father swerved a bit to avoid him/her on a road with not much space on the side and hit a telephone pole; the car's done as far as our ownership's concerned.
I was upset that I didn't save it after the wreck; it looked repairable even if costly! A frame straightening, a new front end, a new radiator and maybe the engine would have started. I feel like I ruined something.
*Past edit was on 6th of March 2016.*
At the original posting time I didn't modify this car much, outside of maintenance the only things changed were driving habits.
Reason for using this car and Hypermiling with it is because we have it, we got it free and to inspire classic car folks who aren't familiar with hypermiling; To show they can increase fuel mileage even without driving like "Grandpa". I've also been inspired by Diesel Dave on here with his pickup.
Current (as of April 18 2016) stats:
A/C belt removed;
General Grabber HTS 225/70R15 Tires - I get approx. 2.2 extra miles per 100 shown on the odometer;
Pennzoil Platinum 5w30 Oil
Amsoil EaO59 Oil Filter
Amsoil Severe Gear 75w90 Gear Oil
Ideas:
Electric Fan;
Rear Wheel Skirting;
Synthetic or Biosynthetic Oil that stays in the 10-11 range (Pennzoil Platinum or Ultra Platinum 5w30, Renewable Lubricants 5w30, some Amsoil 5w30s are all a number of choices)
Synthetic Grease
Old photo: