GCCX GATX Corp. Coke Service Train covered gondolas. These cars are used to carry petroleum coke from oil refineries to steel mills. Coke is used in blast furnaces because it lacks the impurities of coal that would contaminate the iron and it doesn't "pack down" like coal which inhibits the air flow in the furnace. Coke is usually associated with coal but it is also a by-product of oil refining. These cars move in small groups in mixed freights or complete unit trains. The GCCX reporting marks belong to GATX Corporation (yes, the tank car people.) The cars were purchased second hand from New Hampshire Public Service and re-lettered for GCCX. The new road numbers were made from an odd mix of mis-matched stencils so the lettering styles vary from digit to digit and car to car. This release is available in 12 different road numbers.

These cars are equipped with Micro-Trains Line trucks and couplers.