The BMW 528i takes a 10W-40 grade oil. The viscosity of this type of oil is important because it helps to lubricate the engine and protect its components from wear and tear. A 10W-40 oil has a lower viscosity at low temperatures and a higher viscosity at high temperatures, which makes it ideal for use in engines that operate over a wide range of temperatures. In addition to its viscosity, the 10W-40 grade oil also has additives that help protect the engine against wear and corrosion. If you’re looking for an oil that will provide optimum protection for your BMW 528i, then a 10W-40 grade is the best option.

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If you need a replacement, the Mobil 1 M 10W-40 is a great choice. It’s a synthetic oil that meets stringent European specifications and has been awarded the BMW LL-98 approval by BMW of North America. This means your BMW 528i will get maximum engine protection from corrosion and wear when you use this high-quality oil. In addition to its excellent performance as an engine oil for your BMW 528i, this Mobil 1 product also offers superior protection against sludge build-up and viscosity breakdown – two problems that can shorten the life of any engine.

Its properties include:

Viscosity/Temperature: 10W40
BMW Approval: LL98
Construction Type: Synthetic Blend
Packaging: 1 Quart Bottle
When it comes time to change your BMW 528i’s oil, it’s important to use a grade that will provide the best protection for your engine. The 10W-40 grade is an excellent option, as it has a lower viscosity at low temperatures and a higher viscosity at high temperatures. It also has additives that help protect the engine against wear and corrosion. If you’re looking for an oil that will provide optimum protection for your BMW 528i, then a 10W-40 grade is the best option.