From Car and Driver
This isn’t Jeep’s aboriginal diesel-powered pickup. In fact, it’s the brand’s third oil burner with a bed. The 2021 Jeep Gladiator EcoDiesel follows the 1986 to 1987 Comanche, which was accessible with Renault’s abhorred turbocharged 2.1-liter four-cylinder agent that produced alone 82 application and 132 pound-feet of torque. Before that, in 1964, Jeep additionally awash the United States Marines two Forward Control models able with a two-stroke diesel. Supplied by the Cerlist Agent Company of North Carolina, that supercharged 2.8-liter inline-3 delivered bifold the ammunition abridgement of Jeep’s flathead-six but aloof 85 horses and 170 pound-feet. Beneath than 500 were produced, and beneath than 50 are accepted to exist.
Jeep is assured added success this time around. It anticipates 15 percent of Gladiator buyers will accept the new EcoDiesel V-6, which is the aforementioned allotment of Wrangler Unlimited barter that accept paid amply for the turbocharged 3.0-liter agent in 2020. Aloof as it is on the Wrangler, the agent costs an added $4000 and requires the $2000 eight-speed automated manual option.
Built by Fiat Chrysler’s Italian agent accessory VM Motori and now in its third generation, the agent appearance a compacted-graphite-iron block, aluminum butt heads, and a variable-geometry turbocharger that produces up to 31.9 pounds of boost. Although it makes 480 pound-feet of torque in the Ram 1500, area it has a hardly college compression ratio, it isn’t absolutely as able in the Jeeps. In the Wrangler and Gladiator, it’s rated at 260 application at 3600 rpm and 442 pound-feet at aloof 1400 rpm. That’s still the accomplished torque appraisement in the mid-size auto segment, and it’s essentially added than the 260 pound-feet that the accepted 3.6-liter gas V-6 provides.
Pick your antiquated cliché to call the EcoDiesel’s abhorrent balance and ultra-flat ability curve, which makes it abundant for off-roading. Our Rubicon analysis agent chugged up abrupt hills and over frame-twisting obstacles with the agent awkward at 2000 rpm or less. Its responses are abrupt both about boondocks and at college speeds, and the manual does a acceptable job of befitting the V-6 on top of its torque plateau. Along with the added able-bodied 8HP75 eight-speed automatic, the agent additionally necessitates the Rubicon’s tougher Dana 44 axles with 3.73:1 gears. While the manual about upshifts aboriginal back accelerating hard, flicking the shifter over into its M position moves the about-face credibility up to the diesel’s 4500-rpm redline. Admitting belief about 400 pounds added than the gas model, the EcoDiesel Gladiator feels aloof as quick and should hit 60 mph in the seven-second range.
Fitting the all-important 5.1-gallon agent bankrupt aqueous (DEF) catchbasin for emissions acquiescence meant Jeep had to compress the pickup’s 21.5-gallon ammunition catchbasin bottomward to 18.3 gallons. But the EcoDiesel still manages to action a ample advance in ambit against the gas V-6, which may be its best acute affairs point. The agent carries a 24-mpg EPA accumulated appraisement against 19 mpg for the gas V-6, and its abeyant artery ambit is added than 500 miles.
The EcoDiesel’s added accumulation additionally meant retuning the Gladiator’s abeyance after altering its delivery or arena clearance. Spring ante are up about 10 percent, and its dampers are stiffer, but the pickup’s ride affection hasn’t suffered abundant to matter. Its towing accommodation has, however. As a aftereffect of cooling restrictions imposed by Jeep’s signature seven-slot grille, the EcoDiesel can alone tug 6500 pounds to the accepted model’s 7650. A four-wheel-drive Chevrolet Colorado with its alternative 2.8-liter inline-4 turbodiesel is rated to cull 7700 pounds, admitting accepting 73 beneath foot-pounds of torque. The Jeep’s burden accommodation additionally changes hardly depending on the configuration. On the Rubicon, it absolutely increases hardly from 1075 pounds with the gas V-6 and automated manual aggregate to 1160 pounds.
To abate noise, agent Wranglers get added sound-deadening actual on the hot ancillary of the firewall and cream on the behind of the infotainment screen. The Gladiator gets the aforementioned treatment. The agent is still appreciably louder than the gas V-6, but it doesn’t afflict the accord with big-rig levels of agent rattle. Compared to the alternative Cummins turbodiesel six begin in Ram’s able pickups, it’s about silent. But dip into the burke and you can apprehend the ballyhoo over the wind noise, and that’s adage article because our analysis agent had a bendable top. There’s additionally a bit of beating in the burke pedal, which you don’t get with the accepted gas V-6.
We’ll go out on a limb and affirm this to be Jeep’s best agent auto ever. It isn’t after its drawbacks. The turbocharged V-6 adds ample weight, cost, and complexity, as able-bodied as babble and vibration, to a barter that fabricated our 2020 10Best List. But the EcoDiesel’s big torque, greater ammunition economy, and added ambit are absolute advantages over the accepted gas V-6, abnormally for Gladiator buyers planning to expedition abysmal into the wilderness with a amount of gear.
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