Use of products with low-quality properties than ACEA A3 and ACEA B4 could cause damages to the engine that are not covered by the warranty" - Call me thick but what does this mean ??
Use of products with low-quality properties than ACEA A3 and ACEA B4 could cause damages to the engine that are not covered by the warranty" - Call me thick but what does this mean ??
I wouldn't even use the wrong oil in my 1.2, even though that probably wouldn't even hurt it
5w-30 would start up the same but would be a bit thinner at operating temperature than the proper 5w-40.
Since you have a tjet which is not only a turbo for a start but a decently tuned engine id get some good quality oil, at the actual spec that is supposed to be used in the car
The car is designed for 5w-40 so use it!