[Shiwnath]

I'm having doubt that it's an oil problem... If it was an oil problem then there would either be dash board lights or your engine would just completely fail, probably seize up and no longer run. Sounds like it may be an idle issue which could be a number of things... Some things that come to mind are the throttle position sensor, idle air control valve, air filter, really dirty throttle body... It's hard to say really, but I have my doubts that a lack of oil change would be the cause of the problem.