Bill Freeman wrote:

    SNIP

It is probably a good idea to change the oil more often in a turbo
engine. Also synthetic oil has demonstrated much better resistance to
temperature break down than ordinary motor oil.

Also Exxon has a new Turbine oil out called 2197. Heard anything about
that Mark Wrathall?

Paul Lamar

The synthetic oil is probably a reasonable idea, but proper cooling is the
real issue so you don't need the superior high temp performance of the
synthetic.  I would be concerned about using a turbine oil, primarily because
the design requirements for a turbine are to cool and lube a set of
rolling element bearings & gears and have nothing to do with sliding
friction and journal bearings, plus nothing to do with dealing with the blowby
products from internal combustion.  I think sticking with a regular
4 cycle oil (Castrol has been very good to me over the last 30 yrs) for
the sump and one of the super-duper (Golden Spectro?) 2 stroke oils
for injection should work very well.

Bill

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