also you could have a fouled spark plug. if you don't want to spend the money ,
just save the money and buy another one that you'll not mind spending money onBlown head gasket on car......how long will my car run, still runs good?Any answer as to how long this will continue to run is purely a guess. If the coolant is also mixing with the engine oil, it won't be too much longer.
I can tell you that I have never had any success, despite the outrageous claims on the labels, with any of the magic snake oil sealers available when it comes to a bad head gasket.Blown head gasket on car......how long will my car run, still runs good?Bottom line you need a new head gasket if you don't get it changed soon good bye engine because that white smoke indicates that your getting coolant in the cylinders and you have to be very careful with that because that will cause you engine to hdrolock which could cause bents rods and then you will have to either spend the money for to get the whole engine overhauled which will cost a lot more than 1200 bucks or a new car which again will cost more that 1200, and i have seen those sealer things cause more damage then fixing anything so i don't trust them, you would be better off to just get new gaskets seriously even if that means parking it till you get the money