Engine oil BMW X1 F48 B38A15 (1.5T) — viscosity and approvals
Which engine oil for BMW X1 F48 B38A15 (1.5T, 2015–2022) — viscosity, specifications, capacity and change interval.
Engine Specifications
| Parameter | Value |
|---|---|
| Marca / Modello | BMW X1 F48 |
| Codice motore | B38A15 |
| Displacement / Fuel | 1.5T petrol |
| Anni di produzione | 2015–2022 |
Recommended Oil
| Parameter | Value |
|---|---|
| Viscosity | 5W-30 |
| Specification / Approval | ACEA A3 / BMW LL-01 |
| Fill volume | 4.3 L (including oil filter) |
| Change interval (mileage) | 15 000 km |
| Change interval (time) | 24 months |
Change oil when either condition is reached — mileage OR time. Never exceed both limits simultaneously.
Approved Oil Brands
Castrol Edge 5W-30 A3 / Shell Helix Ultra 5W-30 / Mobil 1 New Life 5W-30
How to Choose Oil for B38A15
- Viscosity must match specification — using the wrong viscosity grade is not acceptable. Only 5W-30 is approved for B38A15.
- Check the approval code on the label — the can must show ACEA A3 / BMW LL-01 compliance. Regular oil with an incorrect approval may damage the engine.
- Volume — when changing with a new filter, you need 4.3 L. Check the oil level with the dipstick 5 minutes after filling.
- Do not mix grades — if topping up, use the same viscosity and specification.
Consequences of Using the Wrong Oil
- Oil with a wrong approval for a petrol engine can clog the DPF filter (diesel) or cause excessive oil consumption.
- Too thin oil (e.g. 10W-40 instead of 5W-30) accelerates timing chain/belt and crankshaft bearing wear.
- Too thick oil makes cold starting difficult and increases fuel consumption.
Domande frequenti
What oil goes in a BMW X1 F48 B38A15?
Viscosity 5W-30, approval ACEA A3 / BMW LL-01, volume 4.3 L. Recommended brands: Castrol Edge 5W-30 A3 / Shell Helix Ultra 5W-30 / Mobil 1 New Life 5W-30.
How often to change the oil in BMW X1 F48?
Every 15 000 km or 24 months — whichever comes first. With heavy city driving or short trips, every 7,500–10,000 km.
How much oil does the B38A15 take?
4.3 litres with a new filter. Before ordering, double-check — some X1 F48 variants with the same engine code may differ by 0.2–0.5 L.
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