EcoDiesel Becomes Most Efficient Jeep Wrangler Ever

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It's also got a ton of torque.

After more than a year's worth of speculation, the 2020 Jeep Wrangler EcoDiesel was finally revealed as the diesel-powered Wrangler we've been dreaming about. Aside from some badges on the back, the EcoDiesel looks pretty much like any other Wrangler. But instead of having a 3.6-liter V6 or 2.0-liter turbo-four under the hood, it has a 3.0-liter turbocharged EcoDiesel V6 producing 260 horsepower 442 lb-ft of torque.

The diesel engine should provide plenty of low-down torque for challenging off-road trails but Jeep was confident it would also be the most efficient Wrangler engine to date. Now, the EPA has published the official fuel economy figures confirming exactly that.

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The EPA rates the Wrangler EcoDiesel at 22 mpg in the city, 29 mpg on the highway, and 25 mpg combined. This city figure is three mpg higher than the V6 model and only one mpg higher than the four-cylinder. However, on the highway, the EcoDiesel beats its gasoline siblings by a significant seven mpg.

25 mpg is also the highest combined figure for any Wrangler by a measure of four mpg. All of these comparisons are based on the four-door Unlimited model with 4WD and the eight-speed automatic because that's the only way you can order the EcoDiesel.

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But there's more to the EcoDiesel story than just looking at the mpg figures. The EPA predicts the annual fuel cost will be $1,850 for the EcoDiesel. Compared to the V6 at $1,900, this would be a small fuel saving. But since diesel costs more than regular gasoline, the four-cylinder model will actually cost a bit less ($1,800) to run for the year. And those savings don't even factor in the cost of the EcoDiesel engine, which is priced at $4,000 (the other engines are no-cost options). So although the EcoDiesel is the most efficient of the bunch, those fuel savings may not be worth the price premium.

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