Aftertreatment Diesel Particulate Filter (DPF)

Caution

Use diesel fuel other than ULSD and engine oils other than - O Premium Plus (or VDS - will adversely fect ficiency and durability the Aftertreatment DPF system and the the point where the engine may not run Manufacturers warranties can also rendered void due usage improper Unapproved fuel additives (including engine oil) are NOT Blends and grades ULSD are recommended and allowable for cold weather

The exhaust aftertreatment system virtually eliminates exhaust White exhaust vapor (water condensation) may visible during a cold black exhaust smoke visible during engine this indicates a problem with the exhaust aftertreatment T ake the vehicle authorized Mack T ruck dealer immediately