Hey guys its been really cold up in florida, we are talking around 40-50 degress in the mornings and 50 to 60 in the afternoons, so it usually gives off a liltle smoke just at start up. Its a rebuild engine with 3k on it... anyways im running premix and yesterday i went to fill her up and i used 89 grade gas from shell gas station and some premix and now today early in the morning their was a lot of smoke at start up i mean it was alot... could it be the gas? also im using 20w-50 oil should i go back to 10w-30? thanx guys for the help and ill update. THANX SERIOUSLY!

The car runs fine and it doesnt seem to be eating coolant but i do have really low compression and a small streetport.

 

Too much premix maybe?

Steve

 

12-13 premix
11.7 gal gas

 

The amount of smoke can also be effect by how much mosture got in to the exhast. THere was alot of water vaper on my car this moring and my exhast smoke for like 4 to 5 min. I hope this helps

 

yeah that might have to do with it as well... also my exhuast is about 10 years old and has rust everywhere ( its not the stock) it has one precat cusco i think is called but it might be in really bad condition, the car sounds like crap as well i think is due to he exhaust though... anyone else have any ideas?