Select a letter to go to the terms beginning with that letter.
- I/M
- Inspection and Maintenance
- IBP
- Initial Boiling Point
- ICCA
- International Council of Chemical Associations
- ICE
- Internal Combustion Engine
- IChemE
- Institution of Chemical Engineers
- ICOMIA
- International Council of Marine Industry Associations
- ICP
- Inductively Coupled Plasma (emission spectroscopy)
- IDI
- Indirect Injection
- IEA
- International Energy Agency
- IFO
- Intermediate Fuel Oil (marine bunker fuel)
- IFP
- Institut Français du Pétrole or IFP Energies nouvelles (F)
- IFQC
- International Fuel Quality Center
- IGO
- Industrial Gas Oil
- ILMA
- Independent Lubricant Manufacturers Association
- ILSAC
- International Lubricants Standardization and Advisory Committee
- IMO
- International Maritime Organization
- IR
- Infrared
- ISO
- International Organization for Standardization
- ISOT
- Indiana Stirred Oxidation Test
- IVD
- Inlet Valve Deposit