Review on Semi-synthetic engine oil LIQUI MOLY Special Tec AA 5W-30, 4 l, 3.8 kg, 1 pc. by Boyan Ivanov ᠌

I used to buy oil from a different brand that came in green canisters, but I recently converted to this manufacturer's oil. I change them every ten thousand, and by the time I do so, the room is not completely dark anymore; rather, it is only a little bit darker. The engine operates in a smooth and quiet manner. After each oil change, the level of oil in the engine is checked and maintained at the same level. Noticing any reasons to question the authorship of the work.