The BMW S63 is one of the most powerful and technologically advanced engines ever built by BMW M. It combines a 4.4 liter V8 layout with twin turbochargers, direct injection, and sophisticated cooling systems. First appearing in the E70 X5 M and E71 X6 M in 2009, the S63 has since evolved through several generations and now powers the M5, M8, and the high performance M SUVs.
With outputs ranging from 555 hp in its early form to over 617 hp in Competition models, the S63 is designed to deliver relentless acceleration and sustained performance. But such a highly stressed engine depends heavily on the right lubrication. Choosing the Best Oil for BMW S63 is one of the most important steps in ensuring reliability, longevity, and consistent performance.
The BMW S63 engine family
The S63 is derived from the N63 V8 but extensively modified by BMW M. It features twin scroll turbochargers located inside the “hot-vee” between the cylinder banks, direct fuel injection, variable valve timing, and reinforced internal components. Over the years, BMW has updated the S63 with new cooling systems, lighter internals, and stronger lubrication circuits to handle increasing power levels.
Here is a summary of the main S63 versions and the cars they powered:
| S63 Variant | Output range | Representative models | Production years |
|---|---|---|---|
| S63B44O0 | 555 hp | X5 M (E70), X6 M (E71) | 2009–2013 |
| S63B44T0 | 560-600 hp | M5 (F10), M6 (F12/F13), M6 Gran Coupé (F06) | 2011–2016 |
| S63B44T2 | 567-617 hp | M5 (F90), M8 (F91/F92/F93), X5 M (F95), X6 M (F96), X7 M60i (mild-hybrid variant) | 2017-present |
| S63B44T4 | 635+ hp | M5 CS (F90), limited high-performance editions | 2021-2022 |
This evolution highlights just how versatile the S63 has become. From the early days of the first M SUVs to today’s M5 CS, it has remained the beating heart of BMW’s top performance models.
Best Oil for BMW S63
MOTUL 8100 X-Cess Gen 2 5W40
LIQUI MOLY Special Tec B FE 5W-30
Valvoline European Vehicle 0W-30Best Oil for BMW S63
Unlike smaller BMW engines that use 0W-20 for fuel economy, the S63 demands a heavier oil that can withstand extreme heat and stress. The official recommendation for most S63 engines is BMW Longlife-01 (LL-01) 0W-30 or 5W-30. This specification is designed for high performance engines and provides excellent protection under both everyday and track use.
For owners who drive their cars hard on track or in hot climates, a BMW LL-01 approved 5W-40 is often considered the best choice. The thicker viscosity at high temperatures adds an extra margin of protection for bearings and turbos. BMW’s own M TwinPower Turbo 10W-60, used in earlier naturally aspirated M engines, is not approved for the S63, this V8 was designed for modern synthetic LL-01 oils.
Recommended approach
- Best Oil for BMW S63 in normal use: BMW TwinPower Turbo 0W-30 or 5W-30 LL-01
- For track use or hot climates: LL-01 approved 5W-40 for added thermal stability
Always ensure the oil bottle explicitly states BMW LL-01 approval, not just “suitable for BMW.”
BMW S63 oil capacity
The oil capacity of the S63 is larger than smaller BMW engines, reflecting its size and performance needs. Most versions of the S63 require around 9.0 liters with filter. For example, the F90 M5 specifies 9.3 liters, while earlier versions like the E70 X5 M list slightly less.
As always, the best practice is to fill slightly below the full amount, run the engine to operating temperature, then check the electronic dipstick and top up gradually. Overfilling is dangerous for turbocharged V8s, it can lead to foaming, catalytic converter damage, and oil seal issues.
Why oil choice matters so much for the S63
The S63 is a twin turbocharged V8 that runs very hot, especially under load. The turbos are mounted within the hot vee, meaning oil is constantly exposed to extremely high thermal stress. At the same time, direct injection can contribute to fuel dilution, which thins the oil and reduces its protective qualities.
The right oil ensures:
- Stable viscosity under high temperatures
- Protection of turbocharger bearings from coking
- Reduced wear on piston rings and cylinder walls
- Clean operation by resisting sludge and deposits
Using non-approved oil can lead to premature turbo wear, increased oil consumption, and ultimately engine damage.
Service intervals
BMW’s recommended oil change interval for the S63 is 10,000 miles or 12 months. While this may be acceptable for lightly used cars, most M specialists recommend shorter intervals of 5,000–7,000 miles, especially if the vehicle is driven aggressively or used on track.
Shorter oil change intervals are cheap insurance when dealing with a high-output twin-turbo V8. Fresh oil helps reduce heat stress, maintains turbocharger reliability, and minimizes carbon buildup.
Ownership tips for S63 oil care
To keep the S63 healthy, owners should adopt a few practical habits:
- Warm the engine properly before hard acceleration oil needs time to reach full operating viscosity.
- Monitor oil levels frequently. The large sump and high consumption potential mean regular checks are essential.
- Use only OEM or high quality filters. A poor quality filter can collapse under the S63’s oil pressure.
- After spirited driving, allow the engine to idle briefly before shutting it off. This gives the turbos time to cool and prevents oil coking.
Best Oil for BMW S63
MOTUL 8100 X-Cess Gen 2 5W40LIQUI MOLY Special Tec B FE 5W-30Valvoline European Vehicle 0W-30Conclusion – Best Oil for BMW S63
The Best Oil for BMW S63 is an oil that carries the BMW Longlife-01 approval, specifically in the 0W-30 or 5W-30 grade for normal use. For extreme conditions, many specialists prefer a 5W-40 LL-01, which provides extra protection in heat soaked environments.
With an oil capacity of around 9 liters, the S63 demands careful maintenance and attention to oil levels. Regular changes, high quality filters, and proper driving habits ensure that this V8 remains one of the most thrilling engines BMW has ever produced.
Whether it is under the hood of an M5 Competition, an M8 Gran Coupé, or an X6 M, caring for the S63 with the correct oil is essential to preserve both performance and reliability. Choosing the Best Oil for BMW S63 is not just routine service, it is the key to unlocking the full potential of this legendary engine.
