When i turn on the blowers for heat to come out the windows fog up immediately and dosent clear??

If the fog is oily, then your heater core is leaking and the blower is blowing coolant onto your windshield

yes, the heater core is leaking coolent and when the heat is turned on , the evaporated coolent is what is steaming your windshield.
Replace the heater core to solve this problem.

no heat is probably low coolant or bad thermostat,although you have fog and smell ! the heating and cooling systems are closed systems the only way the windows fog is the coolant is hot and steams inside the car due to some leak inside the heater core box. as well as the smell being present. Now it is possible that a little leak has occured where the coolant supply or return line connects to the heater core and is running into the car which is running onto the core and creating steam and smell. hopefully it is a easy clamp tighten fix for you.

Sounds like the heater core is leaking coolant. If it is leaking it will blow steam out of defrost vents and fog the windshield. Symptoms: low coolant level in radiator, steam coming out vents when engine is warmed up, odor of anti-freeze coming out of vents, wet carpet in floorboard near heater blower motor.
If so, replace heater core.

to clear the interior of fog you must put the fan on recirc and #3 fan position.with the a/c on HOT.it will clear as soon as any heat from the engine is allowed to the heater matrix to dry out the interior.if you allow fresh air into the car with fogged up glass,they will get worse as the temp is warmer inside the car than out.(they collect condensation).

Your heater core has a leak, it's like a small radiator that heats up and the blower motor blows air thru it to create heat in the car. It is leaking anti freeze into the heater box.

Sounds like a possible heater core failure(hole in it) the smell indicates to me the coolant(anti-freeze) is leaking into the passenger compartment.
Check the carpet in front of the front passenger seat for moisture, this would confirm heater core leak.
Good luck !

So I am guessing the heater core, the only other thing it would be would be any leak that is allowing moisture in the car. is the floor board wet on the passengers side?

Was there a smell along with it fogging up the window like antifreeze? If it did the heater core is leaking and needs to be replaced. It will be kind of a sweet smell.

chances are the heater core is clogged and wont allow proper circulation for the heater.i would suggest getting a new one put in and see if that dosent fix it for you.