Cost to Fill a GMC Yukon XL with Gas (2023 Estimates)

The cost to fill a 2023 GMC Yukon XL depends on tank capacity and local fuel prices.

The Math

• Fuel Tank Capacity: 26 gallons (per EPA / fueleconomy.gov).
• National Average Gas Price (Jan 2023): ~$3.52/gallon (regular unleaded).
• Estimated Fill Cost: 26 gal × $3.52 = ~$91.50.

Real-World Variables

• Current Price: As of mid-2024, national average is ~$3.50–$3.80; fill cost ~$91–$99.
• Regional Variation: California/Hawaii ($4.50+ → $117+); Texas/South ($3.00 → $78).
• Fuel Grade: Yukon XL recommends regular (87 octane). Premium adds ~$0.50–$0.80/gal.
• "Empty" vs. Reserve: The 26-gal is total capacity; the low-fuel light comes on with ~2–3 gallons left. A "fill from light" is ~23–24 gallons ($80–$90).

Use apps like GasBuddy or AAA Gas Prices for real-time local station prices.