Power Master 15% 18% oil

Gallon #1 short 7.3846 oz.
#2 short 7.3842 oz.
#3 short 8.5384 oz.
#4 short 12.00 oz.
#5 short 6.4615 oz.
#6 short 6.4615 oz.

Gallon # 4 was measured by volume and with those results the other 5 gallons were calculated by weight.

Power Master has assured me that they have fixed the problem and it was not their intension to short their customers.
Call Power Master with your questions.