Engine oil Renault Laguna III M9R (2.0 dCi) — viscosity and approvals

Which engine oil for Renault Laguna III M9R (2.0 dCi, 2007–2015) — 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

Elf Evolution Full-Tech 5W-40 / Castrol Edge 5W-40 C3

How to Choose Oil for M9R

1. Viscosity must match specification — using the wrong viscosity grade is not acceptable. Only 5W-40 is approved for M9R.
2. Check the approval code on the label — the can must show ACEA C3 / Renault RN0720 compliance. Regular oil with an incorrect approval may damage the engine.
3. Volume — when changing with a new filter, you need 5.0 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 diesel engine can clog the DPF filter (diesel) or cause excessive oil consumption.
• Too thin oil (e.g. 10W-40 instead of 5W-40) accelerates timing chain/belt and crankshaft bearing wear.
• Too thick oil makes cold starting difficult and increases fuel consumption.

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What oil goes in a Renault Laguna III M9R?

Viscosity 5W-40, approval ACEA C3 / Renault RN0720, volume 5.0 L. Recommended brands: Elf Evolution Full-Tech 5W-40 / Castrol Edge 5W-40 C3.

How often to change the oil in Renault Laguna III?

Every 20 000 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 M9R take?

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