German Castrol = SLX in the U.K. ?
Formula SLX 0w-30
Unique fuel saving characteristics - free flowing qualities and exceptionally low frictional characteristics
This is most likely why this oil makes most engines quiet.
They list 2 other 0w-30 syntecs. The other, is a very light viscosity version that is used in Volvos and appears to be as thin as the old American stuff.
SLX - R Tec 0w-30
Formula SLX 0w-30
Unique fuel saving characteristics - free flowing qualities and exceptionally low frictional characteristics
This is most likely why this oil makes most engines quiet.
They list 2 other 0w-30 syntecs. The other, is a very light viscosity version that is used in Volvos and appears to be as thin as the old American stuff.
SLX - R Tec 0w-30