Hello,

I'd lent my brother my FS120 Sthil Brushcutter (2004). He decided to
'take a look at it' for me before giving it back, so removed the
grease cap in the head and added some grease to the gearbox. For some
reason I don't understand rather than using red grease as recommended
he has used some very old 'Royal Snowdrift' grease. There are no-more
details as to the kind of grease it is on the tin but it's black. He
didn't tell me this until I'd got it back a used it a couple of days.

Presumably the wrong type of grease could be serious and it's time for
a trip to the Sthil dealer's workshop?