so you would not advice a A3/B4 5W40 type oil on an engine with 220K+KM on it, or would you say that's just fine?
I always thought that you can switch to a higher weight oil within the same oil spec. But my car doesn't 'need' A5/B5 anymore. I got rid of the DPF and I'm not going to do 30K km oil changes. I'll change every 15K km.
a Full Syn 5w40 A3/B4 oil would do than, right?
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