Since my dad passed in May I've been fixing his car in memory of him. There's a couple things giving me problems. One is the fuel. I've put a tune up on it and when I first did it I could go on a two and a half hour trip using a quarter of a tank. Slowly it's gotten worse. Tonight it used almost half a tank. The other is the temp. I've done almost everything including found a crack on the plastic housing where the thermostat goes and replaced that. I've also replaced the thermostat twice now and when I had the flush in the car it never ran hot but since i took the flush out it's back to running hot. HELP PLEASE ANYONE, Ann