![]() This can be solved by taking your car out for a long drive. When you drive long distances and the engine becomes hot, this fuel will evaporate out from the engine oil. If you are only driving short distances, the fuel in the combustion chamber will slowly fill up the engine oil pan with fuel and therefore increase the oil level. If you noticed that your engine oil is above the max-sign on the dipstick even if you are sure that you did not overfill the engine oil, there is one big reason for this. RELATED: Will a Slight Overfill Harm an Automatic Transmission? Causes of Overfilling Engine Oil Over time, the engine will be starved of proper lubrication, and due to the weak oil pump, it can get locked up. This foamy texture of the oil acts like a bad lubricant, and the oil is not pumped effectively. When you add too much oil, the excess oil will go towards the crankshaft, and as the crankshaft rotates at a high-speed, the oil is mixed with the air and ‘aerates’ or becomes foamy. However, anything more than that could be harmful to the engine. Adding an extra half a quart will not damage your engine. The engine oil reserve holds some extra oil to compensate for the fluid expansion due to hot conditions. But if you filled it 0.3″ or more above the sign, it is time to drain some of the oil. ![]() Luckily, there is no need for action if the oil level is slightly above. Overfilling engine oil far above the max level can cause serious damage to your engine. How much Engine Oil should I fill in my car? What Happens If You Overfill Oil?
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