John Deere ether costs about $4 (around here anyway) per 7oz by weight can which I believe is actually about 8oz by volume. I used a small canning jar marked with how much ether volume I needed and put a lid and ring on the jar and poked two holes in it. I then used a straw on the ether can (I modified a different tip to use a straw) and squirt the ether into the jar through one hole. I put the ether cans in the freezer beforehand. This way I won't have a punctured partial can to contain. I measured out the kerosene, castor, and Amsoil cetane booster and put it in the can first and added the ether last. A good shake and it was all mixed. I used a metal acetone can which is a bit over a quart and used 31% ether, 20% castor, 2% Amsoil, and 50% kerosene. So far this has worked well for me.