The 2026 Porsche Cayenne has a fuel tank capacity of 18.4 to 23.7 gallons (70–90 liters), depending on the trim. The most common size is 23.7 gallons, used on 3 trims.
A full tank is good for roughly 423–545 highway miles or 356–403 miles around town, going by the EPA ratings.
020 gal40 gal
23.7 gal · Bigger than 84% of 2026 models we list.
What changes the tank sizeTap an option to filter the table
Powertrain
Engine
All 6 trims
MPG and range are city / highway.
Trim
Engine
Drive
Tank
MPG city / hwy
Range city / hwy
E-Hybrid 4dr SUV AWD3.0L 6cyl Turbo 8A · AWD Plug-in hybridMPG 21 / 23Range 386 / 423 mi
3.0L 6cyl Turbo 8A Plug-in hybrid
AWD
18.4 gal70 L
21 / 23
386 / 423 mi
S E-Hybrid 4dr SUV AWD3.0L 6cyl Turbo 8A · AWD Plug-in hybridMPG 21 / 23Range 386 / 423 mi
3.0L 6cyl Turbo 8A Plug-in hybrid
AWD
18.4 gal70 L
21 / 23
386 / 423 mi
Turbo E-Hybrid 4dr SUV AWD4.0L 8cyl Turbo 8A · AWD Plug-in hybridMPG 21 / 23Range 386 / 423 mi
4.0L 8cyl Turbo 8A Plug-in hybrid
AWD
18.4 gal70 L
21 / 23
386 / 423 mi
4dr SUV AWD3.0L 6cyl Turbo 8A · AWDMPG 17 / 23Range 403 / 545 mi
3.0L 6cyl Turbo 8A
AWD
23.7 gal90 L
17 / 23
403 / 545 mi
GTS 4dr SUV AWD4.0L 8cyl Turbo 8A · AWDMPG 15 / 22Range 356 / 521 mi
4.0L 8cyl Turbo 8A
AWD
23.7 gal90 L
15 / 22
356 / 521 mi
S 4dr SUV AWD4.0L 8cyl Turbo 8A · AWDMPG 16 / 21Range 379 / 498 mi
4.0L 8cyl Turbo 8A
AWD
23.7 gal90 L
16 / 21
379 / 498 mi
No trim matches all of these filters.
Tank figures are the manufacturer's rated capacity, sorted smallest tank first. Range is tank size times EPA city or highway MPG.
How far a 2026 Porsche Cayenne goes on a tank
Gallons left and the distance they cover at each mark on the fuel gauge, at EPA city and highway mileage. At the combined rating of 22 MPG, a full 18.4-gallon tank covers about 405 miles.
Gauge
Gallons
Highway miles
City miles
Full
18.4
423
386
3/4
13.8
317
290
1/2
9.2
212
193
1/4
4.6
106
97
1/8
2.3
53
48
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 682 gallons, roughly 37 full tanks.
Fuel gauges aren't perfectly linear and the low-fuel light comes on with a few gallons still in the tank, so plan your stop before the last eighth.
At 23.7 gallons, the Cayenne's largest tank ranks second of the seven 2026 SUVs compared here. The Land Rover Range Rover Sport carries the most (23.8 gal) and the Lexus GX the least (21.1 gal).
Picked by body style and size: other 2026 SUVs within about 5% of the Cayenne's length and 15% of its curb weight, one model per brand.
2026 Porsche Cayenne fuel system recalls
NHTSA lists 1 fuel-system recall for the 2026 Porsche Cayenne, out of 1 recall in total. A recall applies only to the vehicles named in it, so check your VIN.
Delivery · Fuel pumpSep 23, 2025 · NHTSA 25V634000 · Porsche Cars North America, Inc. · 177 vehicles
Porsche Cars North America, Inc. (Porsche) is recalling certain 2024-2026 Panamera, Cayenne, and 2025 Panamera E-Hybrid vehicles. The fasteners securing the high pressure fuel pump may not be tightened properly, resulting in a fuel leak.
Risk and remedy
Risk: A fuel leak in the presence of an ignition source increases the risk of a fire.
Remedy: Dealers will inspect and tighten the screw connections and replace the high pressure fuel pump and fuel lines as necessary, free of charge. Owner notification letters were mailed November 19, 2025. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is ASA9. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning October 10, 2025.
What is the fuel tank capacity of the 2026 Porsche Cayenne?
The 2026 Porsche Cayenne holds between 18.4 and 23.7 gallons, depending on the trim. 23.7 gallons is the usual size; the smaller 18.4-gallon tank is on the E-Hybrid 4dr SUV AWD.
How many gallons and liters does the 2026 Porsche Cayenne gas tank hold?
The 2026 Porsche Cayenne tank holds 70–90 liters, or 18.4–23.7 gallons in US gallons.
Which 2026 Porsche Cayenne has the biggest gas tank?
The 23.7-gallon tank is on the 4dr SUV AWD, GTS 4dr SUV AWD, S 4dr SUV AWD. The smallest tank, 18.4 gallons, is on the E-Hybrid 4dr SUV AWD.
Does the 2026 Porsche Cayenne tank change with the powertrain?
Yes. Plug-in hybrid: 18.4 gal; Gas: 23.7 gal.
How far can a 2026 Porsche Cayenne go on a full tank?
About 423–545 miles on the highway and 356–403 miles in town, going from full to empty at its EPA ratings. Expect less in practice, since nobody runs the tank dry.
How many miles can a 2026 Porsche Cayenne go on a quarter tank?
About 106 highway miles or 97 in town from the 18.4-gallon tank, which has roughly 4.6 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2026 Porsche Cayenne take?
Premium unleaded (required). The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2026 Porsche Cayenne?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 23.7-gallon tank from empty costs $125.14. It ranges from $108.31 in the Gulf Coast to $150.73 in California.
How much does a full tank of gas weigh in a 2026 Porsche Cayenne?
About 147 pounds for the 23.7-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2026 Porsche Cayenne have a bigger gas tank than the BMW X6?
Yes. The 2026 Porsche Cayenne holds up to 23.7 gallons; the 2026 BMW X6 holds up to 21.9.
Has the 2026 Porsche Cayenne had a fuel pump or fuel system recall?
Yes. NHTSA lists 1 fuel-system recall for the 2026 Porsche Cayenne: 25V634000 (delivery · fuel pump). Check your VIN at nhtsa.gov/recalls to see if your car is affected.
Sources
Tank sizes: manufacturer-rated capacities from US-market specifications, cross-checked against a second spec database. Updated October 2026.
MPG and range: EPA ratings (fueleconomy.gov). Range is tank size times EPA MPG.