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only run the ashless stuff. i run it in both of my cummins. love it i felt like it made my motor go through the rpms smoother. do it. i do 1oz to every gallon. some do a gallon to a oz.
I first read about the 2-stroke trick on DB. So i figured with all of the test and trials I would give it a shot myself ( 1 oz. per gallon ) and I love it. Made engine run smoother, quieter and i have noticed a little more fuel mileage. Go For It!