Regarding the post below on measureing small amounts of fuel additive when filling - well how much do you calibrate out if you have a half tank and filling? or 3/4 tank? If it calls for (for instance) 12 oz additive for ea 20 gal fuel and you have a half tank and fueling - then is it ok to add the 12 oz or just 6? Does it hurt anything if you add more additive then the ratio calls for? I've thought about this packageing thing ever since I've been running diesels and buying additive in 1 gal jugs (treats 300 gals), I have an idea as a pkge/container to keep it simple and clean, but wonder how guys would handle the partial tank fills if additive came in amounts for a tankfull at a time.