[Mgs] OIL

[Paul Hunt]

The factory recommended 10W/30 only for temps consistently between 10C 
to -20C/50F to -5F.  For temps above that the lowest recommended grade is 
10W/40.  Very low viscosity oils are intended for modern low-clearance 
engines, where high viscosity can erode the bearing material as well as 
reduce through-put.  Conversely modern low viscosity oils are said to allow 
more metal to metal contact in older engines with higher clearances, but 
then we have had this, erm, discussion before.

PaulH.

----- Original Message ----- 
> ... Never
> the less, I stick to 10W/30. This is within the range of recommended
> viscosities in the owners manual (as I recall, but I am bit fuzzy on
> that point).