Oils and spoils

["Tracy Drummond" <bighealey@charter.net>]

Just got off the phone with Castrol consumer service and verified that their
recommendation is

 

GTX 20W50 over .12 content of ZDDP.

 

I have GTX 10W30 in now (for the past 10,000 miles probably) and it is NOT
ON THE RECOMMENDED LIST for flat tappet motors.

 

They are sending me an official whitepaper/statement on the subject. 

 

Hummmmm   perhaps a cam upgrade to a new grind over the winter..

 

Tracy