I started with 1/OZ per Gal, but was gaining oil in the crankcase.  I cut it back to 150 to 1 (4.3 OZ per 5-gallon can)  but am easing back towards 128/1 (1 OZ/ Gal) since it now uses just a tad.  How's that for scientific!

 

Bill Eslick

 

 

Works for me Bill :-)  Thanks to all who replied.  I also did some checking on the RX-7 Club forum, and found about the same thing.  1oz/gal seems to be the standard, if there really is such a thing as a standard. 

 

Thanks,

Rusty