EW4: DD15 CARB COMPLIANT HWY 6 YEARS/600 ,000 MILES/966,000 KM TC4: HD STD ON-HWY 5 YEARS/550,000 MILES /885,500 KM EXTENDED TRUCK COVERAGE TOWING: 6 YEARS/UNLIMITED MILES/KM EXT TOWING COVERAGE $1800 CAP FEX APPLIES DETROIT DT12 TRANSMISSION: STD ON-HWY 7 YRS/750,000 MLS/1,207,500 KM. FEX APPL DETROIT CLUTCH 5 YEARS/500,000 MILES/ 805,000 KM. FEX APPLIES