Overdrive Magazine | Trucking Business News & Owner Operator Info
Issue link: https://read.dmtmag.com/i/114712
2013 MACK GRANITE SPECS AS TESTED Engine: Mack MP8, 425 hp, 1,570 lb.-ft. torque Transmission: Allison 4500 RDS 6-speed Gross combination weight: 80,000 lb. maximum Wheelbase: 226 in. Engine brake: Mack Powerleash Front axle: Mack FXL18, 18,000 lb. Front axle tires: Bridgestone M844F 425/65R22.5 L Mack engineers say the 13-liter MP8 diesel delivers ample torque and horsepower in a more compact, lightweight design. The company has championed smaller-displacement diesels for years. TS MA 96 s at 1 e u th #13 Se oo B Front axle brakes: Meritor S Cam 16.5-by-6 in. Front suspension: 18,000 lb. taperleaf Tandem rear axle: Mack S440, 44,000 lb. Rear axle tires: Bridgestone M726EL (drive only) 11R22.5 G sion, so there was a silver bulldog standing tall on the truck's nose, signifying a powertrain other than all-Mack, which would merit a gold bulldog. Given Mack's reputation for toughness and power, I was surprised to find a Mack MP8 13-liter diesel under this Granite's hood since 16-liter power is available. Dorwart explains that Mack has been leading the industry charge toward smaller-displacement diesels for Rear axle brakes: Meritor Cam 16.5-by-7 in. Q Plus Tandem rear suspension: Mack SS440 multileaf Rear axle carrier ratio: 4.50 Power divider lockout: In-cab manual air valve years now. One reason Mack is so passionate about this shift, he says, is that size no longer automatically equals power. This truck's MP8 churns out 425 horsepower, which – thanks to the Allison 4500 RDS – is plenty for moving heavy loads across a jobsite and down the highway. "The conventional wisdom for dump trucks has always been a bigger hammer under the hood to make sure you can (Continued on Page 103) Donaldson Delivers Hardworking Filters A Better Way to Filter Fuel Change over to a Donaldson Twist&Drain™ fuel/water separating system with our new Fuel Filter Kits. 1-866-484-8350 www.donaldsonfilters.com Text INFO to 205-289-3555 or visit www.ovdinfo.com Trucking Fuel Kit Half 7x4½.indd 1 2/12/2013 4:03:19 PM March 2013 | Overdrive | 43 Test_Drive_Granite.indd 43 2/28/13 8:01 AM