Over the years I have always done the oil changes on my bikes myself. Recently, due to circumstances I asked my regular mechanic to do the oil when he had the bike in the shop.
The bike is a 1989 R100GS and I have always used 20/50 mineral oil. He used semi-synthetic for the change and over the next few days the engine was leaking like a sieve...When I discovered that he had used semi-synthetic I immediately changed to mineral and the oil leaks stopped without any other actions....
__________________
The electric monk always has faith.
|