The BMW 328i does not have a single universal oil. Most gasoline 328i engines require a synthetic oil that meets BMW’s Longlife standards, with viscosities that vary by generation and climate. In general, older 328i models commonly use 5W-30, while newer models often specify 0W-20. Always verify the exact specification for your engine code and model year in the owner's manual or via BMW’s official resources.
Oil requirements by generation
BMW 328i (E9x) — roughly 2007–2013 (N52/N54 engines)
In this generation, BMW typically recommends a synthetic oil that meets the Longlife-01 standard. The default viscosity is commonly 5W-30, with 0W-40 offered as an alternative in hotter climates or under certain service conditions.
- 5W-30 synthetic (BMW Longlife-01) — standard recommendation for most climates
- 0W-40 synthetic — alternative in hot climates or when specified by the service meter
Concluding: For most E9x 328i models, 5W-30 LL-01 is the typical choice, but always confirm climate-specific needs in your manual.
BMW 328i (F30/F31) — roughly 2012–2015 (N20 engines)
During this generation, BMW generally calls for a full-synthetic oil that meets Longlife-01. The common viscosity is 5W-30, with 0W-40 available as an alternative in certain markets or conditions.
- 5W-30 synthetic (Longlife-01) — common default
- 0W-40 synthetic — alternative where specified or required by climate
Concluding: Most F30/F31 328i owners use 5W-30 LL-01; check your manual for regional guidance and service plans.
BMW 328i (G20) — roughly 2019–present (B46 engines; in many markets the 328i name has been replaced by 330i)
In the modern 3‑series era, BMW largely prescribes very low-viscosity synthetic oil to maximize efficiency. The typical recommendation is 0W-20 with an LL-01 (or LL-01 FE in some markets) oil. Some markets or variants may accept 0W-30 if 0W-20 isn’t available, but 0W-20 is the standard for newer turbo engines like the B48 family.
- 0W-20 synthetic (BMW LL-01 or LL-01 FE as applicable) — standard for modern B46 engines
- 0W-30 synthetic — possible alternative in markets where 0W-20 isn’t available
Concluding: For contemporary 328i models (G20/B48 era), 0W-20 is typically the correct oil; always verify with your specific vehicle’s manual or dealer guidance.
How to pick the right oil
Always consult the owner’s manual or the BMW service portal for your exact engine code (N52, N20, B46, etc.) and climate. In general, use a full-synthetic oil that meets BMW Longlife standards (LL-01 or the applicable LL specification for your market). If your climate is very cold, 0W-20 is often preferred; in moderate climates, 5W-30 is common; some high-temperature or high-stress driving may warrant 0W-40 in older generations. Do not rely on a generic oil unless it explicitly matches the BMW specification for your car.
Summary
- The BMW 328i’s oil type depends on model year and engine family.
- Typical guidance: older models commonly use 5W-30 synthetic (LL-01); newer models commonly use 0W-20 synthetic (LL-01 or LL-01 FE).
- Always verify the exact specification for your vehicle in the owner’s manual or via BMW’s official resources, as market- and engine-specific requirements can vary.