Taken from an article on TDR [TurboDieselRegister] from a September press review of the 2013 DODGE Ram:
" . . Diesel-equipped Ram Heavy Duty pickups feature an industry-exclusive Ram Active air intake system, activated by new monitoring capabilities added to the engine controller. When the intake system senses extreme heat, it draws cool air from the front of the vehicle—a function that also engages at high altitudes for superior throttle response in low oxygen environments. When conditions are wet from snow, ice or water fording, the system pulls air from the standard/conventional underhood inlet, clear from snow packing and water ingestion."
1] Intake flow path changes for high heat
2] Intake flow path changes for wet conditions
3] Intake flow path changes for oxygen percentage reduction
Slick!!
INTRODUCING THE NEW 2013 RAM HEAVY DUTY TRUCKS
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