Diesel model engines don't run on pump diesel or its substitutes. They are not true diesels because they burn a homogenous fuel air mixture supplied by a carburetor instead of fuel injected directly into the cylinder after the compression stroke is finishing.

Model diesel fuel is a mixture of kerosene, ether, and castor oil and a small amount of amyl nitrate. Some of these ingredients are very hard for individuals to buy in the U.S. because they can be used as drugs (amyl nitrate) or are used to manufacture methampetamines (ether).
Commercial model diesel costs just as much or more than glow fuel does and if you think glow engines are messy and smelly, wait 'till you try diesel.