Greetings everyone, 1st post. After reading numerous informative posts from the resident oil guru's I decided to try blending 3 quarts valvoline synpower 20w-50 with 4 quarts maxlife 5w-20. (06 buick rainier 4.2 litre 7 quart sump) which I believe would give me approx. 10w-32 wt. Now it seems valvoline has removed the pao from maxlife. Does anyone know if they removed the pao from the synpower 20w-50 (pao content used to be between 65% and 75%) Thanks for any imput.