Q: Advice on which weight of oil to use

asked by on May 25, 2016

Hello. I need some advice related to the oil weight I should use for my car model and mileage. My car has gone around 150,000 miles and has a 3.5 L engine. I had my oil changed at the dealership for Chevy. They told me that the oil weight I am supposed to use is 10w-30. However, due to the fact that modern cars use 5w-30, they don't have the heavier weight oil anymore. I drive mostly shorter distances with occasional longer trips. Should I continue to use 5w-30 or use heavier oil for this particular model? Thanks.

Your car calls for 10w30 oil. The 10w is the winter grade that is blended with the 30 weight oil. The oil 5w30 will be a good replacement and should be compatible with your car. I would not go to a heaver weight oil or engine damage may happen since the thicker oil may not make it to lubricate all the tight parts like the thinner oil can.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

What others are asking

Front brakes rattling going downhill and steering wheel shakes.

Despite having the disc brakes and brake pads replaced on your Dodge Durango, there can be other reasons that could be producing these concerns. With the front brake rattling and steering wheel shaking, it is possible there was a part...

When replacing the AC Compressor, do I need to replace both expansion valves as well or just the front

Hi there. Anytime you replace major air conditioning system components like the AC compressor, it's recommended to purchase all supporting hardware and replace it at the same time. AC works as a series of individual components working efficiently together to...

My transmission has a shifting issue

If you are having issues with the transmission suddenly going to neutral instead of the next gear and also losing reverse or erratic gear engagement then you most likely have debri getting into the solenoid and valve body solenoids. You...

What does the Engine Oil Pressure light mean on the dash?

One of the most alarming lights you’ll see on the dash of the Fusion is the Engine Oil Pressure light. It looks like a little oil can, and it will come on under a couple of different conditions. Here’s what...

Steering wheel squeaks, horn won't work & airbag light on

Hi there, thanks for writing in about your 2001 Chrysler LHS. The clock spring in the steering column is used to pass the wires from every steering wheel component and air bag on the steering wheel. The clock spring is...

2004 Mazda Tribubte shut off

This may be a sign of a failing idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine. This valve is controlled by the...

Hi There, Generally, the check engine light comes on when something fairly serious is going on with the vehicle. This can happen for many different reasons such as a faulty mass air flow sensor, a faulty O2 sensor (as you...

Ball joints

Hello. The lower joint carries most of the load and wears out first, but both upper and lower will have wear and may both need to be replaced. If you jack up the front end and support from under the...

My car system beeped with the low coolant warning light and went to cold and then it completely shut off

Hello. If the coolant was low enough and if the engine started to get hot then it will shut down. Hopefully the engine turned off before any damage occurred. If the coolant was that low then there is a leak....

Related articles

How to Read a Motor Oil Label
Read an oil label to know the right type of oil to use in your car. Some new engines require synthetic oil, while older engines use conventional oil.
How to Buy a Good Quality Valve Cover Gasket
When When you open the hood of your car to take a look at your engine, you'll find it is kept safe with a valve cover. What keeps this valve cover in place and not moving around is the valve...
How the Engine Lubrication System Works
Car engines need oil to work properly. Motor oil lubricates engine parts and helps prevent overheating. Changing oil on time helps your engine last.