Q: What Oil Viscosity Should I Use With My Filter?

asked by on

What oil viscosity should I use with my filter?

Oil is the life’s blood of every engine. It lubricates the internals of your engine, it cools your engine, and it keeps your engine clean.

Oil viscosity, or the measurement of an oil’s resistance to flow, is a key property of the oil we use in our cars. There are many different viscosities of oil that are available. The most common oil viscosities are 20W-50, 15W-40, 10W-40, 10W-30, 5W-30, 5W-20, and 0W-20.

The oil in your engine must be thick enough to protect the internal components of your engine, but not too thick. Oil that is too thick flows slowly and is not capable of protecting your engine.

Engines have, in the past, used 10W-30 oil as the primary grade of oil. More powerful engines typically use 20W-50 or higher because of the additional stresses that those engines are subjected to.

Many engines today use lighter oils like 5W-30 or even 0W-30 because of the tighter tolerances that they’re built with. Tighter tolerances translate to smaller paths for the oil to flow.

Diesel engines most commonly use 15W-40 or 10W-30, depending on ambient temperatures. One quick way to check which viscosity oil to use in your car is to look at the oil fill cap on your engine. It should have the oil viscosity that is recommended by your vehicle’s manufacturer. If you need help with an oil change, a technician from YourMechanic can come to your home or office and perform this task at your convenience.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. What Oil Viscosity Should I Use With My Filter?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Oil filter housing leak

Hello! The most common oil leak on a BMW inline six is the gasket between the engine block and the oil filter housing. The alternator must be removed to provide access to the oil filter housing. Once the gasket is...

Q: Car using a lot of oil - 2013 Volkswagen Touareg

Some manufacturers absolutely design their vehicles to consume oil as a normal engine function. Volkswagen has a tendency to do this. If not by design, there are several things to take a look at. Bad gaskets will allow the oil...

Q: No oil on the dipstick

This engine requires 6 quarts of oil according to the service manual. I would check to see if the engine has an aftermarket engine oil cooler installed. You would see two hoses with an adapter above the oil filter and...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...