General Engine Products (GEP) produces three variations of their Optimizer 6500 Diesel Engine. The Application Manual is used as a technical selling point for the engine. The engine is marketed for heavy-duty on road, off-road and marine applications.
Creative Data, Inc produced the manual for GEP and created a CD version of the publication from the same source files. This saved time to market and was very low cost. The manual has not been printed in some time, but the CD has been updated and is becoming the product of choice.