Can't believe I missed all this.
OP changed his oil 10-22, Wichita, KS High 81degF "Oil temps too high"
OP changed his oil 10-25, Wichita, KS High 50degF "Oil temps normal"
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GTR TT 493Whp/431lbft, Ecutek, Southbend 6puck,Quaife, RPM RollBar 4Point, R888R, JRZ RSPro F(10R/10C) R(10R/6C) 1000f500r inlbs+150inlbs Tender, SPL everywhere.
Full Specs