Reason I ask is I was cleaning old paper work from lab and found old dated 1997 information on a polymer/ester for motor and lube oil usage. Some info.
"ester type is completly shear stable"
"Highest load carring capacity compared to all other lubricating oil base fluids avalible in
the market"
cam lobe wear intake (average) 5.2 Milli/gram
Same oil with out 8% Polymer/Ester 34.5 Milli/Gram.
"possible to reach the EC-II pass level without using a friction modifier"
"In full synthetic premium oils concintrations of up to 33% are commercially used"
"possible to formulate low ZDDP (500ppm) oils without losing anti wear proformance"
"these results are proprietary information to out customers"
So this is dated 1997 when did this Green stuff show up?
Bruce