Tak że jest to napewno FULLSYNTETYK aczkolwiek zgadzam się że Castrol robi wały z niektórymi olejami i nazywa je syntetykami ale ma też w swojej ofercie pełne : Edge SAE 10W-60 for special BMW M-Series engines _____________________________________________________________________________________ Applications Castrol EDGE 10W-60 is a fully synthetic engine oil offering exceptional protection for high performance engines. This product is the sole oil approval for certain BMW M series eg M5, plus Z8 post March 2000. _______________________________________________________________________________ Features / Benefits Delivers performance that has been designed especially for the BMW M-series. High degree of engine protection at elevated high and low temperatures. Fully synthetic technology. ____________________________________________________________________________________ Specifications / Performance BMW approval for M series and Z8 models post 2000 API SJ/CF Castrol EDGE 10W-60 is a fully synthetic engine oil offering exceptional protection for high performance engines. This product is the sole oil approval for certain BMW M series eg M5, plus Z8. BMW approval for M series and Z8 models. API SJ/CF PS. Aż zadzwoniłem do niemiec do Siedziby Castrola i dostałem odpowiedz konkretną że EDGE 10W60 JEST OLEJEM W PEŁNI SYNTETYCZNYM !!!