Best motor oil for a 04 bmw 325ci ow40w or 5w40w full syn...

Q: Best motor oil for a 04 bmw 325ci ow40w or 5w40w full synthetic

asked by on October 24, 2017

Best motor oil to buy
My car has an automatic transmission.

The difference between these two oils is primarily the viscosity or thickness of the oil. Depending on the brand, there may be a number of other additives in play as well, however the most important component of the oil is the viscosity and ability to protect against thermal breakdown due to heat. Generally, when the weather is colder outside you will want a thinner oil to allow the oil to flow easier through the motor allowing it to properly lubricate parts. When the weather is hotter outside, you will want a thicker oil to prevent it from what is called “thermal breakdown” and to keep it layering the internal engine parts with the proper lubrication. I would recommend having an expert from Your Mechanic come to your home to perform an oil change service on your car to determine the best option for your vehicle.

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

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

2001 BMW 325Ci E46 3 series: turns over, no start, no spark, no communication on scanner. New battery was installed.

Hi there. Unfortunately, when the ECU is not connecting to the digital scanner, that's an indication of a failed ECU. This is only something that can be completed by a BMW certified repair facility, as they keep ECU programming pretty...

car pulls to right after being hit hard on left tire and slight dent on wheel well.

There was probably at least some damage to your tie rods. These are the connections between the steering rack and the wheel. If one is bent or fatigued, it could even be dangerous to drive the car. There are some...

2004 X type jaguar reading transmission fault will go in gear but wont pull off

Hi Bo. Jaguars typically have this problem, which tends to be caused by one of two things. First, it's common for an internal transmission sensor failure to trigger this warning light and the shifting issue. A second issue is due...

Related articles

A Buyer’s Guide to the 2012 BMW 6-Series
With With an eye-catching restyled exterior that still boasts the basic signature grille shape, the 2012 6-Series is packed with modern features while maintaining its classic image and top-of-the-line performance. Key Features 4-way adjustable suspension BMW apps –...
5 Essential Things to Know About Luxury Vehicles
There’s There’s something to be said about the looks and offerings of luxury vehicles, but appearances can always be deceiving. If you’re considering buying a luxury car, there are a few things you need to know before you make your...
A Buyer’s Guide to the 2012 BMW X5 xDrive35d
The The 2012 BMW X5 xDrive35d offer contour seats and smooth acceleration. The suspension offers a smooth ride to the driver and passengers in the vehicle, even for long road trips. It can handle tight curves without any problem while...