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Vehicles using BUL engine list:

  • AUDI - A4 2.0 TFSI quattro (162kW) 2005–2008
  • AUDI - A4 2.0 TFSI (162kW) 2005–2008

Recommended oil for engine BUL engine.

Ask AI about any Engine code
Questions strictly about engine codes (brand/model/engine type/production years).
Oil Specs Comparison
Castrol EDGE 5W-30 LL
Castrol EDGE 5W-30 LL
SAE 5W-30✔
ACEA C3✔
VW 504.00/507.00✔
MB 229.31/229.51✔
Porsche C30✔
BMW Longlife-04✔
Dexos2✔
Motul 8100 5W‑30 X‑Clean
Motul 8100 5W‑30 X‑Clean
SAE 5W‑30✔
ACEA C3✔
VW 504.00 / 507.00✔
MB 229.31 / 229.51✔
Porsche C30✔
BMW Longlife‑04✔
GM dexos2❌
RAVENOL VMP 5W‑30
RAVENOL VMP 5W‑30
SAE 5W‑30✔
ACEA C3✔
VW 504.00 / 507.00✔
MB 229.51✔
Porsche C30✔
BMW Longlife‑04✔
GM dexos2✔
Pennzoil Platinum Euro Full Synthetic 5W‑30
Pennzoil Platinum Euro Full Synthetic 5W‑30
SAE 5W‑30✔
ACEA C3✔
VW 504.00 / 507.00✔
MB 229.31 / 229.51✔
Porsche C30✔
BMW Longlife‑04✔
GM dexos2✔
Oil specification key
✔ – Meets the required specification
❓ – Not explicitly stated (use caution; check your vehicle manual)
❌ – Does not meet required specification. Use may cause engine issues.

Answer generated by AI.

Oil specifications for BUL engine

SAE 5W-40
ACEA A3/B4
API SN
VW 502.00
VW 505.00

Most common problems, symptoms & fixes for the BUL engine.

Engine BUL commonly faces issues like timing chain tensioner failure, carbon buildup on intake valves, and high oil consumption. Diagnosis involves checking for rattling noises at startup (timing chain), rough idling or misfires (carbon deposits), and frequent oil top-ups. Prevention includes regular oil changes with high-quality synthetic oil, using fuel additives to reduce carbon deposits, and timely replacement of the timing chain tensioner. Solutions require replacing the faulty tensioner to avoid catastrophic engine damage, performing walnut shell blasting to clean intake valves, and addressing oil leaks or worn piston rings causing oil consumption. Early maintenance ensures engine longevity and performance.
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* The engine oils listed on this website are general recommendations based on publicly available data. For the most accurate and suitable oil type for your vehicle, always refer to your car's owner manual or technical documentation. Oil specifications may vary depending on engine version, production year, driving conditions, and other factors. If in doubt, consult your vehicle manufacturer or a certified mechanic.