← all 2014 Porsche Cayenne Diesel trims
2014 Porsche Cayenne Diesel — 3.0L 6-cyl, S8 automatic, AWD
This 2014 Porsche Cayenne Diesel (3.0L 6-cyl, S8 automatic, AWD) runs on diesel. DIESEL
23
MPG combined (20 city / 29 hwy)
$3,117
est. fuel cost / year (today’s prices, 15k mi)
445 g/mi
tailpipe CO₂
At today's AAA national average price ($4.78/gal, 2026-07-05) — the EPA's own price/date assumption isn't exposed in the public dataset, so we recompute this from the EPA's MPG figure and a sourced current price.
EPA updated its fuel-economy equations again for model year 2017 — mostly affecting hybrids and turbocharged engines — and recalculated 2011-2016 ratings to match, in some cases 1-2 MPG lower. The number above already reflects that update.
EPA fuel type: Diesel · class: Standard Sport Utility Vehicle 4WD · engine: 3.0L 6-cyl turbo · transmission: S8 automatic · drive: AWD · MPG retrieved 2026-07-24.