Mechanic cleaning old oil filters
Mechanic cleaning old oil filters

5 Signs It Is Time to Change Your Car’s Oil Filter

2 minutes, 43 seconds Read

The primary purpose of the car’s oil filter is to remove contaminants from the engine oil and keep it functioning properly. Allowing unfiltered oil to stay for prolonged periods of time can cause the machine components to wear out, gradually damaging the engine’s bearing surfaces. Classic cars in Fremont are especially vulnerable to contaminated oil, making it all the more important to keep the engine clean.

Most oil filters look similar except for a few, but critical, differences relate to the threads and gasket sizes. Every car will have its own oil filter. You will need to either consult the instruction manual or do your own searching to determine the ideal oil filter.

Here are 5 signs that the oil filter needs to be replaced.

1) Bad Performance

The most common sign of a bad oil filter is reduced acceleration and an unresponsive accelerator. While this won’t stop the engine, continuing to drive the vehicle in such a condition will cause damage to spread to other parts of the engine.

2) Sputtering

Clogged oil filters adversely affect the motion of oil, disrupting the engine’s ability to accelerate and maintain constant speeds. This can prove to be more than a mild inconvenience on the road as drivers around you are unable to accurately assess your classic car’s speed and risk running into your car as it abruptly slows down. Both soft and hard sputtering should warrant the attention of a skilled mechanic.

3) Metallic Sounds

This is a very serious problem that can destroy your car’s engine without early intervention. A clogged oil filter sends a lower amount of oil to the engine, causing the metal to slide against metal. Driving at high speeds in such conditions can result in rapid wear and tear of your engine, and this is why you should have the oil filter replaced immediately to allow an adequate amount of oil into the engine.

4) Dropping Oil Pressure Gauge

Are you noticing the oil pressure reading on the gauge to drop a couple of notches? This is an indication of problems with the oil filter. When the oil pressure is at the correct pressure, a layer of protective film of oil is formed between the bearings and crankshaft in the engine. Without this pressure, the bearings will overheat and destroy the engine.

5) Contaminated Exhaust

Black or dirty exhaust fumes out of your car are a sign of a bad oil filter. The scent of the oil burning into the exhaust pipe should also serve as a red flag. In the case of the latter, you should bring the car to a mechanic right away. It isn’t ideal to change the car’s oil filter on your own because reaching this component is difficult.

Looking to get your oil filter replaced to enhance the performance of your classic car in Fremont? Head on over to, a comprehensive place to search for rare car parts, and find the ideal make and model of the oil filter based on your car’s requirements.Engg-Logo

Want to find rare classic car parts for your vintage automobile? Call us at this number + 1-650-230-8081 or visit our website at

You can email at to contact ENGG.

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