How to Identify When Car Engine Oil Needs Replacement
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Methods to identify when car engine oil needs replacement are: 1. Use the oil dipstick to drip a few drops of oil onto your finger, then rub it repeatedly. If you feel impurities or poor viscosity, consider replacing it; 2. Remove the oil dipstick and observe the oil droplets under strong light. If visible impurities are present, replacement is needed. Method for changing car engine oil: Use a jack to lift the front of the vehicle or place it on a bridge frame for easy access underneath. Remove the bottom protective panel to expose the oil filter and drain plug. Unscrew the drain plug on the oil pan (note that oil will spray out when loosening), position an oil container beneath the vehicle to collect the old oil, then proceed with replacing the new oil.