In today's digital environment, energy is the most essential for human survival. Its combustion surfaces were coated with ceramics to achieve total adiabatic operation, also called a low heat rejection engine (LHR). One of the best techniques to lower NOx emissions in internal combustion engines is exhaust gas recirculation (EGR). The performance of an LHR with a delayed timing engine has been assessed using diesel and Garcinia Gummi-Gutta (GGG) biodiesel. GGG decreases CO, HC, and smoke emissions while improving brake thermal efficiency (BTE) compared to uncoated engines. The proportion of BTE and NOx decreased as the EGR rate increased, whereas the percentage of HC, CO, and smoke increased.