Engine oil VW Passat B8 CZDA (1.4T) — viscosity and approvals

Which engine oil for VW Passat B8 CZDA (1.4T, 2014–2019) — viscosity, specifications, capacity and change interval.

Engine Specifications

Recommended Oil

Change oil when either condition is reached — mileage OR time. Never exceed both limits simultaneously.

Approved Oil Brands

Castrol Edge 0W-20 / Shell Helix Ultra ECT 0W-20 / Mobil 1 0W-20

How to Choose Oil for CZDA

1. Viscosity must match specification — using the wrong viscosity grade is not acceptable. Only 0W-20 is approved for CZDA.
2. Check the approval code on the label — the can must show VW 508.00 / ACEA C5 compliance. Regular oil with an incorrect approval may damage the engine.
3. Volume — when changing with a new filter, you need 4.3 L. Check the oil level with the dipstick 5 minutes after filling.
4. 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 0W-20) 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 VW Passat B8 CZDA?

Viscosity 0W-20, approval VW 508.00 / ACEA C5, volume 4.3 L. Recommended brands: Castrol Edge 0W-20 / Shell Helix Ultra ECT 0W-20 / Mobil 1 0W-20.

How often to change the oil in VW Passat B8?

Every 15 000 km or 12 months — whichever comes first. With heavy city driving or short trips, every 7,500–10,000 km.

How much oil does the CZDA take?

4.3 litres with a new filter. Before ordering, double-check — some Passat B8 variants with the same engine code may differ by 0.2–0.5 L.