2015 Diesel Guide

2015 Model Year Ford, Ram, GMC, & Chevrolet Diesel Guide

Diesel Hub's "Best in Class" summary for the 2015 model year recognizes class II and class III pickups equipped with a diesel engine. All capacities, specs, and ratings for gas equipped trucks have been omitted. Results are based on manufacturer published data. Furthermore, the term "class" is used herein based on the Federal Highway Administration's (FHWA) classification, which categorizes all trucks (class 1 - 8) by gross vehicle weight rating (GVWR).

Note - highlighted field indicates best-in-class*

2015 Ram 3500 HD

2015 Ram 2500/3500 HD

Ram Trucks has introduced a revised, High Output 6.7L Cummins turbodiesel for the 2015 model year, peaking at 865 lb-ft. The H.O. model is available for the Ram 3500, while the 2500 model retains the 370 horsepower, 800 lb-ft version of the Cummins. The standard engine is backed by Chrysler's 68RFE, while the H.O. transmits power via the medium duty Aisin six speed automatic. The G56 manual transmission remains optional, but comes with engine output detuned to 660 lb-ft; Ram remains the only manufacturer to offer a manual gear box. Furthermore, all of Ram's pickups now feature SAE J2807 certified tow ratings.

Ram 2500 HD Ram 3500 HD
Max Horsepower 370 @ 2,800 rpm 385 @ 2,800 rpm
Max Torque 800 lb-ft @ 1,700 rpm 865 lb-ft @ 1,700 rpm
Max GVWR 10,000 lbs 14,000 lbs
Max GCWR 25,300 lbs 37,900 lbs
Max Payload 3,170 lbs 6,720 lbs
Max Conventional Tow 17,970 lbs 17,970 lbs
Max 5th Wheel Tow 17,970 lbs 30,000 lbs
2015 Chevy Silverado 3500

2015 Chevy SIlverado, GMC Sierra 2500/3500 HD

The GMC Sierra and Chevrolet Silverado HD models remain relatively unchanged for the 2015 model year, still offering the 397 horsepower, 765 lb-ft Duramax diesel matched with the Allison 1000 transmission. The 3500 model offers the highest in-class bumper pull tow rating with an astonishing 19,600 lbs. The GMC Sierra receives a new trim package, the All Terrain HD, which finishes the truck off with a number of aesthetic upgrades and plenty of creature comforts. GM's HD models have yet to utilize SAE J2807 criteria in determining their maximum tow ratings, but are expected to adopt the new standards upon the platforms next major redesign.

Silverado/Sierra 2500HD Silverado/Sierra 3500HD
Max Horsepower 397 @ 3,000 rpm 397 @ 3,000 rpm
Max Torque 765 @ 1,600 rpm 765 @ 1,600 rpm
Max GVWR 10,000 lbs 13,025 lbs
Max GCWR 24,500 lbs 30,500 lbs
Max Payload 3,501 lbs 5,817 lbs
Max Conventional Tow 14,500 lbs 19,600 lbs
Max 5th Wheel Tow 17,900 lbs 23,200 lbs
2015 Ford Super Duty

2015 Ford Super Duty

The workhorse of Ford's Super Duty lineup, the F-450, is revamped for the 2015 model year to deliver increased tow ratings, which have been determined under the SAE's J2807 criteria. Neither the F-250 nor F-350 use the SAE standard, but are expected to do so in the next major platform upgrade. The 6.7L Power Stroke has also been revised, increasing performance by 40 horsepower and 60 lb-ft of torque. The twin sequential turbocharger has been replaced with a more efficient, larger single turbo, which contributes to the engine's power increase. The Power Stroke comes standard with Ford's TorqShift six speed automatic transmission.

Ford F-250 Ford F-350 Ford F-450
Max Horsepower 440 @ 2,800 rpm 440 @ 2,800 rpm 440 @ 2,800 rpm
Max Torque 860 @ 1,600 rpm 860 @ 1,600 rpm 860 @ 1,600 rpm
Max GVWR 10,000 lbs 14,000 lbs 14,000 lbs
Max GCWR 23,500 lbs 35,000 lbs 40,400 lbs
Max Payload 4,040 lbs 7,050 lbs 5,300 lbs
Max Conventional Tow 14,000 lbs 19,000 lbs 19,000 lbs
Max 5th Wheel Tow 16,600 lbs 26,500 lbs 31,200 lbs

2015 Best in Class Diesel*

3/4 Ton Diesel Pickup
(class 2, 6,001 - 10,000 lb GVWR)
1 Ton Diesel Pickup
(class 3, 10,001 - 14,000 lb GVWR)
Best in Class Horsepower Ford 6.7L Power Stroke Ford 6.7L Power Stroke
Best in Class Torque Ford 6.7L Power Stroke 6.7L Cummins
Best in Class GCWR Ram 2500HD Ford F-450
Best in Class Payload Ford F-250 Ford F-350
Best in Class Conv. Tow Ram 2500HD Sierra/Silverado 3500HD
Best in Class 5th Wheel Tow Ram 2500HD Ford F-450

* Diesel Hub's "Best-in-class" recognizes diesel equipped pickups only - all capacities and ratings for gasoline equipped trucks have been omitted. "Class" refers to class II and class III pickup categories respectively.

Sources: www.ford.com, www.chevrolet.com, www.gmc.com, www.ramtrucks.com