looking at only Pennzoil HM and Mobil Super HM and Maxlife who looks better on paper? Cold weather and Noack goes to Maxlife but if cleaning is your number 1 priority isn't the higher Calicum and Mag of PHM and MSHM going to clean better?
http://www.pqiamerica.com/June 2014/consolidated highmileage2014.html
http://www.pqiamerica.com/June 2014/consolidated highmileage2014.html
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