Engine code

Vehicles using DNUF engine list:

Which cars use the DNUF engine and what oil to use. Common DNUF engine faults, symptoms, diagnosis, prevention and repair.

Recommended oil for engine DNUF 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 βœ”
ACEA C3 βœ”
VW 504.00/507.00 βœ”
MB 229.31/229.51 βœ”
Porsche C30 βœ”
BMW Longlife-04 βœ”
Dexos2 βœ”
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Motul 8100 5W-30 X-Clean
Motul 8100 5W-30 X-Clean
SAE 5W-30 βœ”
ACEA C3 βœ”
VW 504.00 / 507.00 βœ”
MB 229.31 / 229.51 βœ”
Porsche C30 βœ”
BMW Longlife-04 βœ”
GM dexos2 ❌
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RAVENOL VMP 5W-30
RAVENOL VMP 5W-30
SAE 5W-30 βœ”
ACEA C3 βœ”
VW 504.00 / 507.00 βœ”
MB 229.51 βœ”
Porsche C30 βœ”
BMW Longlife-04 βœ”
GM dexos2 βœ”
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Pennzoil Platinum Euro Full Synthetic 5W-30
Pennzoil Platinum Euro Full Synthetic 5W-30
SAE 5W-30 βœ”
ACEA C3 βœ”
VW 504.00 / 507.00 βœ”
MB 229.31 / 229.51 βœ”
Porsche C30 βœ”
BMW Longlife-04 βœ”
GM dexos2 βœ”
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Oil specification key
βœ” – Meets the required specification
❓ – Not explicitly stated (use caution; check your vehicle manual)
❌ – Does not meet required specification. Use may cause engine issues.
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Answer generated by AI.

Oil specifications for DNUF engine

SAE 0W-20
ACEA C3
API SN Plus
VW 504.00
VW 507.00

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

Engine DNUF in Audi TTS 2.0 TFSI quattro models is known for occasional carbon buildup on intake valves, causing rough idling and reduced performance. Diagnosis involves a professional inspection with a borescope or intake cleaning test. Preventive measures include using high-quality fuel and regular oil changes with manufacturer-recommended synthetic oils. Solutions for carbon buildup include walnut shell blasting or professional intake valve cleaning. Additionally, ensure the PCV system is functioning well to prevent oil contamination. Regular software updates at the dealership can optimize engine management and reduce issues. Early attention to symptoms like hesitation or misfires can prevent costly repairs.