I don't know exactly what the criteria is for weight ratings so correct me if I am wrong. But I noticed today that according to Pennzoil's PDS for PP 5w-30 the kinetic viscosity at 100c cSt is 8.6. However from my understand for an gasoline engine oil to qualify as 5w-30 is has to be between 9.3 / 12.5. I am sure there is more chemistry going on here that makes it a 5w-30, but I was just curious about this.
PP 5w-30 PDS
PP 5w-30 PDS