How to Know If Engine Oil Level is Too High
2 Answers
Methods to check for excessive engine oil are as follows: 1. Park the car on a relatively level surface, turn off the engine and wait for more than five minutes to allow the oil to fully drain back. 2. Open the engine compartment, locate the oil dipstick, pull it out, and check if the oil level is between the two marks on the dipstick. 3. To ensure accuracy, first wipe the dipstick clean with a paper towel, then reinsert it into the engine. The main reasons for excessive engine oil are as follows: 1. Oil mixed with gasoline or water. 2. Insufficient cylinder pressure or poor cylinder sealing, which can reduce engine power and make starting difficult. 3. Temperature conditions.
I've noticed that oil dilution most commonly occurs in winter or during frequent short trips when the engine doesn't fully warm up, allowing fuel to mix into the oil pan and cause the oil level to rise. After each maintenance, I check the dipstick with a cold engine: pull it out, wipe it clean, fully reinsert it, then pull it out again to check the oil level line. Normally, it should be between the Min and Max marks. If it's above the Max line or the oil appears thin with a gasoline smell, it might indicate oil dilution. Sometimes, this is accompanied by symptoms like difficulty starting, increased fuel consumption, or white smoke from the exhaust. For example, last time my car's oil level was over the limit, and after taking it for repair, it was found that the fuel injector seals were faulty. Checking the dipstick regularly once a month can help detect issues early. Otherwise, accelerated engine wear could lead to costly overhauls—quite hard on the wallet. It's best to visit a repair shop promptly, preferably with full maintenance records for inspection.
