Purvis Brothers in Mars, PA (
http://www.twinwillows.com/motor.html) has sold true premium diesel about since dirt was invented. That-there is tractor pull country...anywhere there's a buncha farmers who pass the cold winter months workin in their shops on their pullin' tractors gettin ready for next year's county fairs you can usually find somebody who sells 'em premium diesel (at a premium price). If you want to find a true premium diesel distributor, go to your county or state fair this fall, attend the tractor pull competition, and ask one of the local drivers where he gets his premium. You can find out where pulls are scheduled by going to the
National Tractor Pullers Association web site.
And while yer in Mars fillin' up, try the sausage gravy and biscuits at Susie-Q's. Sweet Baby Jeezus that's good eatin'. Tell the boys in the corner booth the Doc says howdy.
BTW: anyone on this board who has never attended a tractor pull should run, not walk, to do so. What a hoot. Heavily modified diesel tractors bragging about 3,000 HP, usually anywhere from dual to quad turbos, flame and soot shootin' out the stack like the jaws of Hell, and all competing to drag a 80,000 lb. sled about 300 feet. Keeping the tractor on the ground is usually the biggest challenge. I like what one driver in
this video says: "Its the best 12 seconds you'll ever have." I tend to root for the guys with big outward-bulging dents in their hoods, where an engine has recently blown to smithereens at about 6K RPM. Just be sure to take a respirator and ear plugs with you...the noise and the smoke are freakin' unbelievable. The ultimate diesel orgasm.