
Advanced Solutions for
Trains and Buses
Public transport and diesel train operators face high fuel costs due to heavy loads and frequent stop-start operation. Rentar Fuel Catalyst improves combustion efficiency to reduce fuel consumption, emissions, and engine wear while extending engine life. Our HVACR efficiency solutions can also enhance bus and train air-conditioning performance, further lowering overall energy demand.
We deliver proven solutions that reduce diesel consumption, improve power, extend engine life, and meet stringent environmental regulations, while also enhancing HVAC performance on trains and buses.
Rentar Fuel Catalyst - A Smarter Combustion Solution
Whether you are train operator or bus companies, Rentar Fuel Catalyst can be installed between the diesel fuel tank and the diesel engine, to allow it to break the diesel polymer chain down for more complete combustion without participating in the chemical reaction.


Air-conditioned Trains and Buses
We provide solutions that improve HVACR energy efficiency by restoring condenser and cooling coils of the trains or buses, then enhancing heat transfer with [1]Radiant+ E3 Coating heat-conductive coating. [2] MaxR100® is added to the refrigerant loop to remove oil fouling, reduce friction, lower compressor load, and further improve refrigeration cycle efficiency.



Explore Related Energy Loss Topics
This problem connects to broader thermal-efficiency challenges across industries:
Explore All Energy Efficiency Solutions
HVAC Performance Solutions
- Heat exchanger efficiency improvement
- Energy efficiency improvement in refrigeration circuit
- Heat Transfer Fluid for chiller
- High Efficiency Refrigeration
- AI Driven HVAC Optimization System
Energy Efficiency Building Envelop and Hygiene Solutions
Industrial Heat Transfer
