What is the best oil filter brand, and how do you choose the right one for your car?

Choosing the right oil filter is essential for maintaining your car’s engine health. A quality filter ensures that harmful contaminants don’t circulate through your engine, keeping it running smoothly and preventing premature wear. In this guide, we’ll explore top oil filter brands and how to select the best one for your vehicle’s everyday needs.

Which engine oil filter is best?

This will vary depending on the specific vehicle make and model, however, there are certain indicators of quality, such as brand reputation and advanced materials. Brands such as BOSCH, Mann-Filter, and K&N are known for their innovation and high reliability.

You will also need to consider the vehicle’s requirements. For example, the element has to compatible with the type of engine oil used, whether it’s conventional or a fully or semi-synthetic blend. Don’t forget to check the filtration efficiency rating as lower micron ratings often indicate better filtration.

Best oil filter brand in the UK

According to reviews and sales figures, the top oil filter brands in the UK include BOSCH, K&N, Mann-Filter, Maleo, and Stark, among others. They are distinguished by the premium materials and technologies used when designing their products. Although high-end brands don’t usually offer the lowest prices compared to budget brands, they do guarantee top quality standards and ensure high engine protection.

The top 7 oil filter manufacturers

1. Bosch

For conventional and blended filters, BOSCH arguably offers the best oil filter on the market. Its product is made with a sturdy and thick blended filter element with a high glass content and the capacity to hold up to 14 grams of dirt. They are strong, reliable, and compatible with most Asian and European vehicles.

2. Mann-Filter

Mann-Filter focuses on high-performance and outstanding durability. The brand’s filters feature anti-drainback and bypass valves, and the elements have been specifically designed for modern engines. They offer a wide variety and claim to be the safest option and the trucker’s choice for oil filters.

3. Mahle Original

Mahle has some very interesting options for those looking for a new aftermarket oil filter. As well as selling premium-quality components with fully synthetic elements, the brand also offers a cheaper and more eco-friendly option of replacing only the element itself rather than the housing. This product is known as an oil filter cartridge.

4. K&N

For racing and high-speed driving, K&N offers the perfect design. A nut at the bottom and slots on either side help to keep the filter in place, even when travelling at high speeds. It has a silicone anti-drain valve and a thickness of 77 m, which is thicker than your average filter.

5. Valeo

Valeo filters are designed to provide the highest possible quality standards of filtration and meet all their users’ needs. Their impressive filtration technology traps particles as small as 40 microns (40µm), equivalent to half the width of a human hair.

6. Blue Print

Blue Print offers filters for petrol, diesel, and hybrid cars, and their aftermarket filters are designed to meet the required standards for most vehicles so that they can be easily replaced. Blue Print filters are made using premium-quality materials.

7. Stark

Stark products claim to offer a long service life, good flow rate, and reliable rubber sealing elements. They have anti-drain and bypass valves to ensure a timely supply of oil immediately after the engine has been started, also preventing damage to its components when the filter has reached its capacity.

Why do you need a high-quality oil filter for your car?

As well as the damage caused by unfiltered oil described above, using the wrong filter can cause oil leaks and a poorly fitting filter can even fall out, which is definitely bad news for you and your car if you’re hurtling down the motorway, late for an important meeting.

Many manufacturers recommend getting a new oil filter every time you change your engine oil. The change interval can be anywhere from 3,000 to up to 15,000 miles. That is a lot of mileage, so it makes sense to get the best part possible. This is especially true when using a synthetic oil, as they contain additives and detergents, which prevent contaminants from settling in the engine. This means the oil doesn’t have to be changed as often, but the filter has to work a lot harder. Getting a high-quality component is going to limit the chance of these floating particles causing damage to the engine parts.

A top-notch filter is also going to protect the motor against oil oxidation. Regardless of the situation or conditions, the lubricant reacts with oxygen in a process called oxidation. This permanent chemical reaction increases the viscosity of the oil and it becomes less effective, as well as causing a build-up of sludge. An oil filter prevents the physical by-products of this from making their way inside the engine and stops it from getting damaged.

The engine is always operating at high temperatures and this filter is important for preventing overheating. A build-up of dirt and impurities in the lubricant can reduce its thermal conductivity, meaning that the oil takes less heat away from the engine’s moving parts. This may result in excessive heat and damage, similar to using the wrong oil.

Perhaps the biggest benefit of a good oil filter is an extended engine life. Since the component keeps the oil flow clean and smooth, removing any pollutant that might cause damage, your motor will remain effective and last longer.

Car Engine Oil Filter: Types, Functions, Symptoms, and Replacement Prices

What makes a quality oil filter?

The key parts of an oil filter include the filter element, the anti-drain valve, and the gasket or seal. The materials that these are made from can directly impact the effectiveness of the oil filter.

Anti-drain valves prevent unfiltered oil from flowing back into the tank and are typically made of either rubber or silicone. Rubber valves are cheaper and sometimes indicate low quality, although they might be more suitable for engines which use conventional, non-synthetic oils. Overall, they don’t tend to last as long and often become quite stiff after around 3,000 miles of use. The fact that they aren’t as pliable may mean that they don’t form a tight enough seal. Silicone, on the other hand, lasts a lot longer and retains its elasticity, however, it is more expensive than rubber. As is often the case, you get what you pay for. Silicone can go 6-8 thousand miles and still snap back into place. It therefore makes a good seal, stopping oil from escaping.

The type of filter element is also very important in determining how effective the filter is at keeping the oil clean. This is the material that actually filters the oil. It can be made of cellulose, synthetic material, or a blend of the two, and can often look and feel like cardboard. Synthetic elements are usually made from polyester, glass, cotton, or nylon and have a better filtration capacity thanks to tightly woven fibres. They can capture even the smallest impurities in the fluid without slowing down the oil flow rate and are very hard to rip or tear, making them long-lasting. Cellulose elements are cheaper than synthetic elements, but the quality is not as good. Blended components offer a better alternative both in terms of cost and performance. Some high-quality oil filters have a metal mesh over the top of the filter element, which removes larger contaminants before the oil reaches the element. This protects the material and ultimately makes it last a lot longer.

The dirt holding capacity refers to the filter’s ability to retain contaminants it extracts from the oil and continue working effectively without clogging. The element type and the construction of the filter will have an impact on this capacity. The higher the capacity, the more mileage you’ll get out of it. Some high-quality filters have a bypass valve that allows unfiltered oil to enter the engine in the event of blockages. Others might stop any oil from entering the engine at all when they reach full capacity.

The size and shape of the part is also worth taking into consideration as not all filters fit into every car. Your manufacturer might also recommend certain filters or the car may be designed for a specific filter. For example, certain Land Rover models can be fitted almost exclusively with Wix oil filters due to their size. There is no “one size fits all” with filters. This means that every vehicle make and model has its own specifications. The component’s weight and housing design determine whether it can be installed in your car or not. Make sure the filter’s specifications match the requirements outlined in the car owner’s manual. If the housing is too heavy, this can also affect your vehicle’s performance.

What to know about changing the engine oil and oil filters

How to choose the best oil filter for you

1. Pay attention to the filtration efficiency of the filter element: it must be compatible with the technical requirements of your car. In passenger car engines, the component must provide oil filtration for 5 micron particles. Well purified oil extends the overall service life of the engine and its components. Please note that the higher the level of purification is, the lower the flow capacity tends to be.
2. Inspect the filter housing. The valves and seals must be fully tight.
3. Carefully examine information about the manufacturer. As a rule, the companies that produce high-quality filters always include their company details on the packaging, including the country of origin and the customer support phone number.
4. When purchasing an item online, you should only use trusted online shops. They usually offer expert help and a warranty or quality guarantee.

Why isn’t it worth skimping on these parts?

1. Thick paper is used in low-quality filters. This means it doesn’t last as long.
2. The bypass valve of substandard filters opens at low pressure and dirty oil flows back into the engine.
3. If the anti-drainback valve is not tight enough, the oil drains into the crankcase. During engine starts, the low oil pressure warning light starts to flash on the instrument panel.
4. Particles of a poor-quality filter element can clog the engine oil channels.

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