Not quite true about the Klotz oils. Klotz will not undercut its distributors and therefore, you can buy it from many other places cheaper than from Klotz direct. Paid about $5.50 a quart a few months ago. 30 and 55 gallons are about $16 a gallon from Klotz distributors nearby to my place. CasChem can supply a good model fuel castor, the old, venerable Bakers AA from NJ is still available from Atlanta (CasChem) and other places for about $12-$14 a gallon, plus shipping. VP Racing sells 99.9% methanol for about $2.35 a gallon in 55 gallon barrels and $2.85 a gallon in 30 gallon barrels plus the barrel and shipping. [B] VP racing also sells nitromethane in 5 gallon, 30 gallon and 55 gallon quantities at a reasonable price. IF you can find a nearby city supplier, you can pick it up and pay NO HAZMAT shipping and no regular shipping. A barrel is relatively inexpensive and you can usually refill your own barrel at VP Racing and similar supplier. For most folks, I would advise one of the following three: 1. Find out what your engine needs and buy that fuel. 2. Find out a fuel close to that and add a little castor, synthetic, nitro or methanol as needed. 3. Or, you can mix your own. Any one of these is fine. If you tend to fuel your lawnmower near the pilot light on your gas water heater in the garage, then I recommend 1. or 2. What I find is generally the most difficult is finding good, reliable, inexpensive suppliers and second, having a good formulation for your engine. The rest is not rocket science.

The old fuel mixing dinosaur