Why do some cars have two oil filters?

Why does my car have 2 oil filters?

It is actually HCM (Hydraulic Control Module) filter. The HCM sucks oil directly out of the oil tank and the oil needs to be filtered before going to all the components of that system. This is the same for the engine. Two separate systems sharing the same oil.

Can a car have two oil filters?

Yes, it’s perfectly safe to use either type of filter with either type of oil. If you practice extended drain intervals using synthetic oil, however, a conventional oil filter may not offer the required service life, meaning you’ll have to change it in the middle of the oil drain interval, which is inconvenient.

What is a secondary oil filter?

Secondary oil filters: In addition to the primary oil filters, some manufacturers also install secondary oil filters. These oil filters work on a small portion or about 1% to 10% of the motor oil and clean it before routing it back to the engine.

What are the 2 types of oil filters?

2 Main Types Of Oil Filters

  • Primary Oil Filter. Most car manufacturers use a full flow filtration system, incorporating a primary oil filter, also known as a full flow filter. …
  • Secondary Oil Filter. The next main type of oil filter is a secondary oil filter.
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Is it OK to change oil but not filter?

Technically, you don’t have to change the oil filter every time you change the oil, but it’s still a good idea. The oil filter can remove the larger pollutants from the oil in the engine, and replace the oil at the same time to ensure the smooth operation of all parts.

Do cars take different oil filters?

You will want to check with your vehicle’s manufacturer to make sure, but typically any automotive filters that are made for modern vehicles can be used with any type of oil. Every major motor oil manufacturer says you do not need a special or different oil filter when using synthetic oil.

Why are some oil filters bigger than others?

The reason behind this is because they have a shorter surface filter area and can’t filter as much oil as longer ones. A big surface area translates into a bigger contamination holding capacity.

Can you clean and reuse an oil filter?

First of all, it is not recommended to clean an oil filter and reuse if you are not aware about its functionality. Cleaning an oil filter can get very tricky, let alone reuse it. But from my experience, it is not an impractical idea to start with. Vehicular oil filters do clog up over some time.

Why are some oil filters bigger?

All things being equal, a larger filter has two key benefits – 1) more oil capacity in the system, which helps extend useful life, and keep temperatures down, 2) more filter area means greater dirt holding capacity and therefore greater filtered flow for longer, before filter media saturation and bypass valve actuation …

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Are all oil filters full-flow?

If you have only one oil filter on your vehicle, it is most likely a full-flow design. … This filter removes the larger particles of contaminant from the oil that may be harmful to the engine. A solo bypass oil filter is not common. This type of filter may be found on older applications.

What is a bypass oil filter?

The bypass valve – otherwise known as a pressure relief valve – is an integral part of the oil filter. The valve is designed to open when the oil filter becomes clogged or when the oil is too thick. This allows the oil to bypass the filter through a center tube. … When this happens, the engine looses all oil pressure.