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: Q: Oil change

Oil and filter change intervals are specified by vehicle manufacturers, not mechanics, in carefully considered and prepared "maintenance schedules". Mechanics do not have the necessary field test data, or laboratory data, to wisely specify oil change intervals other than what...

Q: Can a bad water pump cause water in the oil

Hi and thank you for your question. Water pumps are designed to pump water through the engine, radiator, and heating system. Water pumps will not cause oil to enter the cooling system. The oil coming into the water can be...

Q: Does a hybrid engines radiator effect the oil engines cooling system...or could it cause oil engine to sludge up?

If your radiator was leaking, there are good chances that your engine overheated. Not knowing the vehicle history on the frequency of oil changes can make it difficult to diagnose over the internet. Oil changes should be performed every 3,000...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...