Μόλις πήρα κι άλλη απάντηση για το θέμα λάδια σε αυτού του τύπου τα μηχανάκια (FZ, XJ6, κτλ). Εδώ όλος ο διάλογος:
Yamaha UK We have discussed your case internally and we recommend using semi-synthetic engine oil for your specific vehicle.
Me: Is there any specific reason for avoiding the use of fully synthetic engine oil and instead sticking with semi-synthetic for the XJ6?
Yamaha UK: There is no specific reason to avoid fully synthetic other then the premium price.