ok well either my car doesnt like where i park or its scared of the dark. actually i dont know what but i have an idea. the symptoms are during the day it starts fine no problems. at night, im guessing when the temp goes down, it wont start. this is right after i put a full tank of gas in it. so im thinking i got a bad batch of gasoline, my luck indeed. would a fuel treatment like a store bought octane booster solve this dilemma. or does anyone have a better idea of what it could be. its a 85 firebird s/e 2.8 5 speed manual

 

well assuming that you are getting a good spark, you could try using seafoam in the gas tank, and they have a product called deep creek. it is like wd40 on steroids. it acts like starting fluid/carb cleaner/lubricant. with the seafoam in the tank and spraying down the intake the car should turn. if not let me know.

 

does it start at all? Or just crank? do this test -- turn key to run position but don't start it. Is the fuel pump making noise? If not, start there. If it is making noise, check the fuel pressure