Maintenance intervals are kinder than the heavier X15 counterparts. The transmission and engine communicate to better determine the torque currently required.
Motor heavy truck service 13 manual#
When you buy an SA model, it includes not only the next generation of Smart Torque (ST2) but also comes with an Eaton Fuller Advantage 10-speed automated manual transmission (which is how SmartAdvantage gets its name, by combining the names of these two features). There are 13 standard models, three Smart Torque models, and three “SA” models.
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Not only does being 900 pounds lighter than the previously mentioned X15 engines provide greater fuel economy, but it allows your truck to haul more and heavier freight while still being within Department of Transportation regulations. The X12 provides a new method of being efficient: being lighter. There is more information about the X15 Efficiency 2020 on its webpage. 50,000 miles for oil drain and fuel filter cleaning, about 450,000 miles for cleaning the diesel particulate filter, 280,000 miles for the DEF filter, and 500,000 miles for valve adjustments. Regardless of whether you get a standard, EX, or ST, they all have the same maintenance intervals, which are very similar to the ones for the 2020 X15 Productivity. Introduced into Cummins engines in 2007, Smart Torque optimizes gear shifting on more than just current speed, but also on grade, vehicle weight, throttle position, and engine torque, putting your truck in the best gear for whatever scenario it is in. The 2020 Efficiency has 18 flavors, five of which are standard, six of which have an “EX” rating, and seven of which have an “ST” rating.Ĭummins has not said what EX stands for, but it is safe to say that it means “extra”, as Cummins says an EX Efficiency gets 1.5% better fuel efficiency than its basic counterpart, which is already advertised as having better fuel economy than the Productivity line of engines. X15 Efficiency 2020Īs you can imagine, the X15 Efficiency focuses on efficiency as opposed to the X15 Productivity’s productivity. Specificationsįor more information on the 2020 version of the X15 Productivity, check out its webpage. In normal use, you can expect to need to do an oil change and clean the fuel filter every 50,000 miles, clean the diesel particulate filter every 450,000 miles or so, clean the Diesel Exhaust Fluid filter every 280,000 miles, and adjust the valves every 500,000 miles. Maintenance depends on use and the materials used (Cummins insists you can get 5,000 more miles without an oil change or fuel filter cleaning if you use Valvoline Premium Blue motor oil). The engine brake comes with 600 horsepower for emergency stops, and the VGT Turbocharger allows for rapid acceleration. There are six variations, ranging in horsepower from 430-605 and peak torque ranging from 1650-2050 pound-feet.
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The very model of a modern major machine, the X15 Productivity is your only stop for unmitigated performance.
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On their website, Cummins advertises engines ranging back to 2004, but because older engines are less reliable and become obsolete more quickly (Cummins does not even have images for their 2004-2007 engines!), the furthest this article will travel back in time is to 2013. They do not make their own trucks, and instead you can find their engines in a variety of brands, such as in a Freightliner, Peterbilt, or Volvo. Cummins Enginesįounded in 1919, Cummins is a Fortune 500 company that sells engines for a variety of different applications, including heavy-duty trucking. Here we break down the engines from various manufacturers to compare and contrast them so you may make an educated decision on the inner workings of your future vehicle. Unless you are purchasing a truck for the brand name, the engine that goes into a truck should be your first priority in your purchasing decision.