Can putting to much oil in car cause it to not start right?

Answer 1

Yes and no. Most of the time no more than half a quart is ever added by mistake. To much oil in an engine will eventually be burned off because the crank shaft will dip into the pool, causing it to be thrust into the combustion chamber. This will eventually ruin your catalytic converter however. Anything over a quart of to much oil should be drained from the pan as it MAY cause a hydro-lock situation in the engine. This means it will not turn over, or turn over with great difficulty. A hydro-locked engine can be severely damaged when its all said and done. It is recommended to drain excess oil from the pan.