2015 head-to-head · Midsize & Large SUV
2015 BMW X5 Diesel vs Cadillac SRX
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
AWD · 3.0L 6-cyl turbo · 8-speed automatic · 27 MPG
The 2015 BMW X5 Diesel is the cheaper one to run. Driving 15,000 miles a year with $3.70/gal diesel fuel and $3.10/gal regular gas, it costs about $2,056 a year to fuel (27 MPG), versus $2,447 for the 2015 Cadillac SRX (19 MPG). That's roughly $392 a year, or about $1,959 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- BMW X5 Diesel
- Cadillac SRX
Side by side
| BMW X5 Diesel | Cadillac SRX | |
|---|---|---|
| $2,056 | Your annual fuel cost | $2,447 |
| 27 MPG | Combined efficiency | 19 MPG |
| 24 MPG | City | 17 MPG |
| 31 MPG | Highway | 24 MPG |
| — | Passenger volume | 101 cu ft |
| — | Cargo volume | 30 cu ft |
| 381 g/mi | Tailpipe CO₂ (g/mi) | 462 g/mi |
| 7/10 | EPA fuel economy score | 4/10 |
| 5/10 | EPA greenhouse gas score | 4/10 |
| Diesel | Powertrain | Gas |
| Diesel | Fuel | Regular gasoline |
| 3.0L 6-cyl turbo | Engine / motor | 3.6L 6-cyl |
| 8-speed automatic | Transmission | 6-speed automatic |
| AWD | Drivetrain | FWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
BMW X5 Diesel vs Cadillac SRX across model years
- BMW X5 Diesel
- Cadillac SRX
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Among 45 2015 midsize & large SUVs, the BMW X5 Diesel ranks 6th and the Cadillac SRX 17th for lowest fuel cost.
The powertrains differ: the BMW X5 Diesel is a diesel, while the Cadillac SRX is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2015 BMW X5 Diesel or the 2015 Cadillac SRX?
Measured by cost to drive, the BMW X5 Diesel. The BMW X5 Diesel is rated 27 MPG combined and the Cadillac SRX 19 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 BMW X5 Diesel vs. the Cadillac SRX per year?
At 15,000 miles a year with $3.70/gal diesel fuel and $3.10/gal regular gas, about $2,056 for the BMW X5 Diesel and $2,447 for the Cadillac SRX.
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