Grand Cherokee 4xe vs. HEMI: Fuel Costs, Range, and Real-World MPG in NY

The Grand Cherokee’s two most talked-about powertrains pull in opposite directions — the 4xe plug-in hybrid promises electric commuting and $7,500 in federal tax credits, while the 5.7-liter HEMI V8 delivers 357 horsepower and best-in-class towing. For Nassau County drivers, the right choice depends almost entirely on how you actually use the vehicle.

Bottom Line: The 4xe wins for Nassau County commuters who charge at home and drive under 25 miles daily. The HEMI wins for towing, long highway runs, and buyers who won’t reliably charge.

• 4xe: 25 miles EV range, $7,500 federal credit, cheaper daily commuting cost
• HEMI: 357 hp, 7,200 lb tow rating, no charging dependency
• 4xe fuel economy drops significantly when battery is depleted
• Both share the same chassis, 4WD system, and interior quality

How Each Powertrain Works

The Grand Cherokee 4xe pairs a 2.0-liter turbocharged four-cylinder with two electric motors and a 17-kWh battery pack. Combined output is 375 horsepower — more than the HEMI — with a full-charge electric range of approximately 25 miles. Once the battery depletes, it operates as a conventional hybrid, returning around 23 mpg.

For everything you need to know about the Grand Cherokee’s full capability story, see our complete Grand Cherokee guide for Nassau County.

The 5.7-liter HEMI V8 is a naturally aspirated engine producing 357 horsepower and 390 lb-ft of torque. It delivers 19 mpg city and 26 mpg highway on premium fuel. There’s no battery to manage, no charging infrastructure needed, and the towing capacity — 7,200 pounds — is class-leading.

Fuel Cost Comparison: Real Numbers for Long Island

At current Long Island gas prices ($3.50/gallon) and LIPA residential electric rates ($0.24/kWh):

The math is stark: a commuter who charges nightly saves roughly $1,550/year in fuel. That’s ~$7,750 over five years — almost exactly the federal tax credit value, meaning the 4xe’s premium essentially pays for itself on fuel savings alone.

The inverse is also true. A 4xe owner who never plugs in burns more fuel than a HEMI owner, because they’re lugging extra battery weight everywhere.

The $7,500 Federal Tax Credit

The Grand Cherokee 4xe qualifies for the full $7,500 federal EV tax credit under the Inflation Reduction Act, subject to income limits ($150,000 single / $300,000 joint filer). This is a dollar-for-dollar tax credit — not a deduction — meaning it directly reduces your federal tax bill.

New York State also offers a $2,000 Drive Clean Rebate for PHEV purchases, stackable with the federal credit. Combined, that’s $9,500 in potential incentives — making the 4xe Limited competitively priced against a loaded standard Limited.

Check current Grand Cherokee 4xe offers and inventory at Garden City Jeep.

Towing and Capability

This is where the HEMI separates itself. The 5.7L HEMI with the trailer tow package tows 7,200 pounds — enough for a 24-foot powerboat, a horse trailer, or a loaded enclosed car hauler.

The 4xe tows 6,000 pounds with 4WD — solid for most recreational trailers but short of the HEMI if you regularly haul anything at the upper end. The 4xe also cannot use electric-only mode while towing for safety reasons, so the fuel savings disappear when you’re pulling anything significant.

Which to Choose: The Decision Framework

Choose the 4xe if:

• Your daily commute is under 30 miles and you have a 240V outlet at home
• You qualify for the federal tax credit (income under the threshold)
• Most of your driving is local Nassau/Suffolk routes, not long highway runs
• Towing needs are under 6,000 pounds

Choose the HEMI if:

• You tow regularly or need the full 7,200-lb capacity
• You don’t have reliable home charging
• Long highway drives make up most of your mileage
• You prefer a simpler, proven powertrain with no charging dependencies

Fuel economy figures from EPA fuel economy estimates. Actual mileage varies with driving conditions.

Frequently Asked Questions

How long does it take to charge the Grand Cherokee 4xe? On a standard 120V outlet, approximately 12 hours for a full charge. A Level 2 (240V) home charger reduces this to about 2 hours — the recommended setup for daily commuters.

Does the 4xe qualify for the federal EV credit in 2026? Yes, the Grand Cherokee 4xe qualifies for the full $7,500 credit. Income limits apply. Consult a tax advisor to confirm eligibility based on your filing status.

Will the 4xe’s battery degrade over time? Jeep warranties the 4xe battery for 10 years/150,000 miles against defects and significant capacity loss. Real-world data from early 4xe models shows minimal degradation through 80,000 miles.

Is the HEMI available on all Grand Cherokee trims? The 5.7L HEMI is an option on Limited, Overland, and Summit trims. The Laredo and Altitude are V6-only. The SRT uses a different 6.4L HEMI variant standard.

Ready to compare both in person? Schedule a test drive at Garden City Jeep and we’ll walk through the numbers for your specific commute.