I use a graduated "5 gallon" bucket, then fill it up with gasoline to 2 1/2 gallons, then pour in approx. one-half of the oil I put in the graduated quart container (Eric Burton suggested we run a 40:1 gas/oil mixture for best engine longevity, so that is 16 oz to 5 gal or 8 oz to 2 1/2 gal)...