How good is GMC Yukon and Yukon XL gas mileage for El Paso drivers?

The GMC Yukon and Yukon XL are rated about 16 to 17 mpg combined with the 5.3L or 6.2L V8 and about 22 to 23 mpg combined from the 3.0L Duramax diesel, so for El Paso drivers the diesel is the one that makes a full-size SUV easy on fuel stops, especially on I-10 trips. Group 1 GMC Westside, at 955 Crockett St, sells the Yukon and Yukon XL new and lets you apply for financing online or shop through AcceleRide.

El Paso driving is part stop-and-go and part long highway run, so the city and highway numbers matter as much as the combined rating.

Keep reading below, then schedule a test drive in El Paso. Bringing your own numbers to the lot settles this faster than any spec sheet.

How many miles per gallon does a GMC Yukon get in El Paso?

The EPA rates the 2026 Yukon at 16 to 17 mpg combined with either V8 and 22 to 23 mpg combined with the Duramax diesel (EPA, 2026). For El Paso, that makes the diesel the strongest fuel-economy choice, because it leads on city and highway driving alike.

The combined number is not a simple average. EPA weights the city rating at 55% and the highway rating at 45% (U.S. Environmental Protection Agency, 2026), so the combined figure leans toward the city numbers that matter most on El Paso’s stop-and-go streets. Group 1 GMC Westside sells the Yukon new.

What is the Yukon XL’s gas mileage compared with the regular Yukon?

The regular Yukon’s EPA combined ratings are 16 to 17 mpg with either V8 and 22 to 23 mpg with the Duramax diesel. The Yukon XL’s are also 16 to 17 mpg with either V8 and 22 to 23 mpg with the Duramax diesel (EPA, 2026). The two match on the diesel, and the XL gives up 1 mpg combined on the 2WD 6.2L V8 and the 4WD 5.3L V8.

Which Yukon engine saves the most gas for El Paso driving?

Among the gas engines, the 5.3L V8 holds 17 mpg combined in both drivetrains, while the 6.2L V8 gets 17 in 2WD and 16 in 4WD.

Fuel grade is the other difference. The 5.3L V8 runs on regular 87 octane, and the 6.2L V8 is recommended on premium 91 or higher. On the highway, the gap grows: the 2WD Duramax is rated 26 mpg against 20 mpg for the 2WD V8s.

How does the Yukon do on I-10 and El Paso city traffic?

In El Paso city traffic, the 2WD 5.3L and 6.2L V8s are rated 15 mpg, the 4WD 6.2L is rated 14, and the Duramax is rated 21 in 2WD and 20 in 4WD. Those city ratings are the ones that do most of the work on I-10 and the surface streets.

The stop-and-go is measurable. In 2024, each El Paso auto commuter burned 13 gallons of excess fuel just sitting in congestion (Texas A&M Transportation Institute, 2025). An average travel speed of 33 mph was recorded in the 2019 evening peak across the 5.6-mile Downtown 10 stretch of I-10, from Executive Center Boulevard to Loop 478 (Texas Department of Transportation, 2019). Slow traffic like that is where a diesel’s city rating pays off.

How far can a Yukon go on a tank for I-10 road trips?

A Yukon’s reach on a tank follows its highway rating: 20 mpg for the 2WD V8s, 18 to 19 mpg for the 4WD V8s, 26 mpg from the 2WD Duramax, and 24 mpg from the 4WD Duramax. On long I-10 runs toward Las Cruces, Albuquerque and Phoenix, the highway figure is the one to compare, and the diesel stretches furthest between stops.

Those highway numbers come from testing. EPA has automakers run a representative vehicle over five defined test cycles on a dynamometer, and EPA audits manufacturer data and independently confirms roughly 15% of results (U.S. Environmental Protection Agency, 2026). Treat the rating as the starting point for a road trip, not a promise.

Does El Paso’s heat and altitude change Yukon gas mileage?

El Paso’s summer heat is the condition to plan around. NOAA’s 1991 to 2020 normals put the June average daily high at 97.1 degrees Fahrenheit at El Paso International Airport, making June the hottest month of the year by daytime high (NOAA National Centers for Environmental Information, 2020). Plan your summer fuel stops on the highway figures above, and leave room in the tank for a hot drive.

How much does a gallon of gas or diesel cost El Paso Yukon drivers?

Fuel cost depends on the engine you pick. The EPA’s annual fuel-cost estimate is $3,650 for the 5.3L V8 in both drivetrains, $4,550 for the 2WD 6.2L V8 and $4,850 for the 4WD 6.2L V8, $3,900 for the 2WD Duramax and $4,050 for the 4WD Duramax (EPA, 2026). The diesel gets more miles per gallon, but on the EPA estimate the 5.3L V8 is the cheapest of the three to fuel, so the annual fuel bill is the number to compare.

Group 1 GMC Westside’s finance center offers new GMC financing and GMC leases, so you can set a monthly payment beside that annual fuel estimate.

Why shop for a Yukon at Group 1 GMC Westside in El Paso?

The fuel numbers are half of the decision, and the visit is the other half. In a June 2025 Google review, Gerardo F. wrote: “It was such a smooth and seamless process throughout the vehicle purchase. Dylan, our salesperson was very knowledgeable, professional, kind and most importantly patient during this process.” That is one customer’s account of one visit, and it is worth weighing next to the engine figures.

Frequently asked questions

Does four-wheel drive lower Yukon gas mileage?

Only on some engines. The 6.2L V8 drops from 17 mpg combined in 2WD to 16 mpg in 4WD, and the Duramax drops from 23 to 22. The 5.3L V8 holds 17 mpg combined in both drivetrains.

Can I shop for a new Yukon online in El Paso?

Yes. Buyers can shop entirely online with AcceleRide at Group 1 GMC Westside, and the financing application is secure and online too.

How Group 1 GMC Westside lets you shop a Yukon online with AcceleRide

Once you know which engine fits your El Paso driving, Group 1 GMC Westside gives you a way to start online. You can shop entirely online with AcceleRide, apply for financing through a secure online application, and then visit the store at 955 Crockett St when you are ready to see the truck.

We have 4.5 stars across 3,010 Google reviews, and 82 in 100 of them are five-star (Google, 2026). In a July 2025 Google review, Sergiomuniz wrote: “My experience was excellent, Mario Valle (Sales Manager) was great. he was able to explain all options and values and was never in any way or manner pushing us to make quick decisions.” Sales hours are Monday to Saturday, 9:00 AM to 8:00 PM, closed Sunday.

Group 1 GMC Westside gives the I-10 diesel question a direct answer, with the Yukon and Yukon XL on the lot at 955 Crockett St. Start online with AcceleRide or visit the store with your engine choice in mind.

Group 1 GMC Westside answers this question against the specific vehicle in front of you rather than the model in general. Value your trade and get pre-approved online, then see us at our El Paso showroom, or call (915) 519-1116.

Disclaimer: Vehicle features, specifications, pricing, options, and availability may vary based on production timelines and dealership inventory; images are for illustrative purposes only. Starting MSRP figures are national and exclude destination freight charges, tax, title, license, and dealer fees. Standard and available equipment varies by trim, configuration, and model year; confirm the specification of the individual vehicle before purchase. Maximum towing and payload ratings depend on cab, bed, drivetrain, and equipment configuration; see the vehicle’s Owner’s Manual and trailering guide for limits. Electric range and charging times vary with battery, configuration, temperature, terrain, load, and driving habits. Safety or driver assistance features are no substitute for the driver’s responsibility to operate the vehicle in a safe manner. Financing and pre-approval are subject to credit approval. Contact Group 1 GMC Westside for complete details regarding current vehicle inventory, pricing, and equipment.