Does Forgetting to Replace the Oil Filter During an Oil Change Have Any Impact?
2 Answers
Forgetting to replace the oil filter during an oil change has no impact, and it is possible to change the oil without replacing the oil filter. However, it is generally recommended to replace both the oil and the oil filter simultaneously. Typically, the mileage interval for oil changes ranges from 5,000 to 10,000 kilometers, depending on the quality of the original oil and the vehicle's operating conditions. Oil Change Intervals: Generally, mineral oil can be replaced at 5,000 kilometers, while semi-synthetic oil can be extended to 7,000-8,000 kilometers. Full synthetic oil, being of the highest quality, can be replaced at around 10,000 kilometers. When it comes to selecting oil, it is not necessary to always choose full synthetic oil; instead, preference should be given to the vehicle's manual and professional advice. Oil Filter Replacement Interval: Since engine oil must pass through the oil filter (referred to as the oil filter) to reach the lubrication points, the role of the oil filter is to filter out impurities from the oil entering the engine system. This prevents the accumulation of impurities during the oil's circulation, which could lead to oil passage blockages or even severe engine damage. Currently, most passenger vehicles use non-detachable, disposable oil filters. Therefore, it is generally advised to replace the oil filter every 5,000 kilometers along with the oil change to ensure the oil provides optimal lubrication for the engine.
I once tried changing only the engine oil without replacing the oil filter, and the consequences were quite severe. The new oil was immediately contaminated by the dirt in the old filter, circulating through the engine and accelerating wear on components. Within days, the car felt rough to drive, and the oil pressure light came on. Later, at the repair shop, they found heavy carbon buildup in the engine, requiring expensive cleaning and part replacements. Since then, I’ve learned that maintenance must be done thoroughly—every oil change must include a new filter, or it’s like doing half the job. Engine health is crucial to a car’s lifespan, and small oversights can’t be ignored. If you forget, fix it as soon as possible to avoid bigger problems down the road.
