Regarding ITR range of Filters :
Air Filter : It prevents contamination of intake air which mixes with fuel before combustion.
Oil Filter : Provides clean lubricant oil thus reducing premature wear and tear in all frictional parts thus giving maximum fuel economy.
Fuel Filter : Keeps fuel clean which will prolong injector life & maintain higher fuel efficiency.
Transmission Filter : It ensures that transmission fluid is clean and the transmission parts are clog free for better performance.
Coolant Filter : This keeps the coolant system clean.
Water Separator : Fuel water separator is a small filtering device used to remove the water from the diesel fuel before it reaches to the sensitive parts of the engine.