[silver912e]

My Nissan Altima has 188000 mile on it but was running well when I parked it 1.5 years ago. It has been out in the weather. I need to get it out of my yard, so i put about 1 tbs of oil in each cylinder & cranked it over. It started right up and smoked like crazy as expected, but I've run it for several miles now and it is still smoking. I also have a tapping sound near one of the cylinders. Not sure if it's a valve issue.

So what could go wrong in an engine that has been sitting outside for a 18 months that would cause a non-smoking car to begin smoking?

Thanks.