Hello all, I bought an Volvo V40 - D4 with an 2.0 5 cylinder diesel-engine. On websites like Shell lube Match, Total, Castrol and Kroon Oil it says it needs 0W30. The garage where I bought the car from added 5W30, can this be an issue? Can I go back to 0W30 or should I let it as 5W30? Thanks...
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