[TR] Changing oil to full synthetic

[Randall]

> I would suspect that the synthetic oil would leak more 
> vigorously than mineral oil.

I run Valvoline full synthetic in all my cars; and I've never noticed any
increase in leakage.  On one non-LBC, it actually reduced oil consumption
dramatically.

BTW, Castrol was sued a few years back because their "synthetic" was not
what the other makers consider "synthetic".  Castrol argued (and won in
court) that basically anything that had been through a modern refinery
counted as "synthetic".

After several bad experiences, I refuse to put Castrol in anything.

Randall