Oil 4-stroke AL-KO SAE 30 (0.6 l)

Advantages:

Minimineral or mineral base (depending on the source). For example, it says “branded mineral engine oil”.

Reduces friction between engine parts, which contributes to longer service life.

Contains detergent and non-stick additives (according to one of the descriptions).

The site description for garden equipment states that it is suitable “all year round” and provides good protection against corrosion.

One of the user reviews: works well even at ≈ −10 °C.