![]() but I'm taking it in to Mack next week.I talked to them of course they said it can be anything. 2.5-5 fuel economy improvement 88 lbs weight savings 415-505 Horsepower 1460-1860 lb.-ft. #MACK PINNACLE REVIEWS MANUAL#With plenty of horsepower and torque across a wide operating range, the MP 8 delivers the muscle to shoulder heavy-duty vocational and highway workloads. Discover Mack mDRIVE, the revolutionary new automated manual transmission in the truck that makes hauling a big load easier, safer and more fuel-efficient. My MDrive still doing the same slipping in and out on highway does it a little more with 90,000 or 's still going. The MP 8 engine is a legend on roads everywhere. Mack Trucks Australia has celebrated an historic new milestone, handing over the keys to the 1,000th Mack truck built for Hanson, one of Australias most. Plus you guys say they have poor longevity.Its amazing to me what people will give up for convenience. I personally have no use for these Volvo I shift (I mean Mack M drive) transmissions. I was expecting a a huge hole in the radiator, Nope fan disintegrated in the shroud.The bolts holding the fan on were not heavy enough to support the fan. The Mack Pinnacle is a series of heavy duty Class 8 Trucks, Monster Truck produced by Mack Trucks, Monster Truck. Only issue I have had is the fan fell off going 75 mph. I've had several instances where getting a 53' trailer into a super congested terminal that was designed for 32' trailers the air actuated clutch was working so much the low air alarm came on. I have driven a Pinnacle with an MP7 for app 200k. ![]() Yes they make going down the road a little "easier" since you don't physically have to go up and down through the gears but once you get into any type of tight quarters that requires a lot of slow speed backing or maneuvering they absolutely suck. ![]() I have driven these and the Detroit DT12 transmission and from a drivability standpoint they really are less than desirable. 2014 Mack CXU612 Pinnacle Single Axle Day cab, MP7 - 365C, 365hp,10 spd manual, Air Ride Suspension, 22.5LP Tires, Top Fairing & Side Extenders, Dual Aluminum Fuel Tanks, Meritor 2.80 Ratio. #MACK PINNACLE REVIEWS FULL#Most likely so it would save a an extra thimble full of fuel every week and so they could say it gets up to 3% better fuel economy than the previous iteration. ![]()
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