I bought a new compressor, model 921.16474, and when the people at sears loaded it they layed it down because I had to travel 170 miles to my home in Manila, UT. It leaked oil all over and I noticed on the box it said to keep upright. It is now out of oil, none showing on dipstick. what oil do you put in besides synthetic, non-detergent compressor oil. It doesn't have the weight listed in the manual. There is a little in there and I don't mix weights of oil. I am 170 miles from the nearest sears store.