AutoSpecData

Porsche Cayman Annual Fuel Cost

Running a 2020 Porsche Cayman costs about $3,050 per year in fuel, based on 15,000 miles of driving at average U.S. fuel prices.

Latest model year (2020):

The Porsche Cayman costs an estimated $3,150/year in fuel (375 g CO₂/mi).

Verifiedfueleconomy.gov · Verified August 9, 2026
OverviewMPGEngine SpecsFuel CostTransmissionDrivetrainVehicle ClassMaintenanceDimensionsCurb Weight

Porsche Cayman Fuel Cost — All Years

YearTrimEngineFuelMPG Comb.Annual CostCO₂ (g/mi)GHG Score
2020Config 1 of 5Auto (AM-S7), 4 cyl, 2.0 L4 2.0LPremium Gasoline24$3,1503755
2020Config 2 of 5Auto (AM-S7), 4 cyl, 2.0 L4 2.0LPremium Gasoline23$3,3003805
2020Config 3 of 5Auto (AM-S7), 4 cyl, 2.5 L4 2.5LPremium Gasoline22$3,4504104
2020Config 4 of 5Man 6-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline22$3,4503944
2020Config 5 of 5Man 6-spd, 4 cyl, 2.5 L4 2.5LPremium Gasoline21$3,6004234
2019Config 1 of 6Auto (AM-S7), 4 cyl, 2.0 L4 2.0LPremium Gasoline25$3,0503535
2019Config 2 of 6Auto (AM-S7), 4 cyl, 2.5 L4 2.5LPremium Gasoline22$3,4504004
2019Config 3 of 6Auto (AM-S7), 4 cyl, 2.5 L4 2.5LPremium Gasoline24$3,1503725
2019Config 4 of 6Man 6-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline24$3,1503695
2019Config 5 of 6Man 6-spd, 4 cyl, 2.5 L4 2.5LPremium Gasoline21$3,6004134
2019Config 6 of 6Man 6-spd, 4 cyl, 2.5 L4 2.5LPremium Gasoline22$3,4504014
2018Config 1 of 6Auto (AM-S7), 4 cyl, 2.0 L4 2.0LPremium Gasoline25$3,0503535
2018Config 2 of 6Auto (AM-S7), 4 cyl, 2.5 L4 2.5LPremium Gasoline22$3,4504004
2018Config 3 of 6Auto (AM-S7), 4 cyl, 2.5 L4 2.5LPremium Gasoline24$3,1503725
2018Config 4 of 6Man 6-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline24$3,1503695
2018Config 5 of 6Man 6-spd, 4 cyl, 2.5 L4 2.5LPremium Gasoline22$3,4504014
2018Config 6 of 6Man 6-spd, 4 cyl, 2.5 L4 2.5LPremium Gasoline21$3,6004134
2017Config 1 of 4Auto (AM-S7), 4 cyl, 2.0 L4 2.0LPremium Gasoline25$3,0503535
2017Config 2 of 4Auto (AM-S7), 4 cyl, 2.5 L4 2.5LPremium Gasoline24$3,1503725
2017Config 3 of 4Man 6-spd, 4 cyl, 2.0 L4 2.0LPremium Gasoline24$3,1503695
2017Config 4 of 4Man 6-spd, 4 cyl, 2.5 L4 2.5LPremium Gasoline22$3,4504015
2016Config 1 of 7Auto (AM-S7), 6 cyl, 2.7 L6 2.7LPremium Gasoline25$3,0503526
2016Config 2 of 7Auto (AM-S7), 6 cyl, 3.4 L6 3.4LPremium Gasoline24$3,1503725
2016Config 3 of 7Auto (AM-S7), 6 cyl, 3.4 L6 3.4LPremium Gasoline25$3,0503596
2016Config 4 of 7Man 6-spd, 6 cyl, 2.7 L6 2.7LPremium Gasoline24$3,1503765
2016Config 5 of 7Man 6-spd, 6 cyl, 3.4 L6 3.4LPremium Gasoline22$3,4504045
2016Config 6 of 7Man 6-spd, 6 cyl, 3.4 L6 3.4LPremium Gasoline22$3,4503975
2016Config 7 of 7Man 6-spd, 6 cyl, 3.8 L6 3.8LPremium Gasoline20$3,8004464
2015Config 1 of 6Auto (AM-S7), 6 cyl, 2.7 L6 2.7LPremium Gasoline25$3,0503526
2015Config 2 of 6Auto (AM-S7), 6 cyl, 3.4 L6 3.4LPremium Gasoline25$3,0503596
2015Config 3 of 6Auto (AM-S7), 6 cyl, 3.4 L6 3.4LPremium Gasoline24$3,1503726
2015Config 4 of 6Man 6-spd, 6 cyl, 2.7 L6 2.7LPremium Gasoline24$3,1503766
2015Config 5 of 6Man 6-spd, 6 cyl, 3.4 L6 3.4LPremium Gasoline22$3,4503975
2015Config 6 of 6Man 6-spd, 6 cyl, 3.4 L6 3.4LPremium Gasoline22$3,4504045

Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.

Porsche Cayman data analysis

How Porsche Cayman estimated annual fuel cost varies

Across 34 configurations recorded for the 2015 through 2020 Porsche Cayman, estimated annual fuel cost runs from $3,050 to $3,800. The strongest figure belongs to the 2019 Porsche Cayman (Auto (AM-S7), 4 cyl, 2.0 L) at $3,050, and the weakest to the 2016 car (Man 6-spd, 6 cyl, 3.8 L) at $3,800 — a spread of 20%. A gap that wide means the model year and configuration you buy matter more than the nameplate does: quoting a single number for the Porsche Cayman would be misleading.

What changed for 2020

Average estimated annual fuel cost for the 2020 Porsche Cayman is $3,390, against $3,308 for the 2019 car — it rose by $82. Buyers who care most about this figure should look at the earlier model years in the table above before assuming newest is best.

How to read this Porsche Cayman data

This page lists every 2015 through 2020 Porsche Cayman record we hold for this measurement — 34 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.

Configurations behind these Porsche Cayman numbers

The 2015 through 2020 Porsche Cayman entries here cover variants including Auto (AM-S7), 4 cyl, 2.0 L, Auto (AM-S7), 4 cyl, 2.5 L, Man 6-spd, 4 cyl, 2.0 L, Man 6-spd, 4 cyl, 2.5 L, Auto (AM-S7), 6 cyl, 2.7 L, Auto (AM-S7), 6 cyl, 3.4 L, Man 6-spd, 6 cyl, 2.7 L and Man 6-spd, 6 cyl, 3.4 L. 2016 is the busiest model year in the record with 7 separate measured configurations, which is why a single quoted estimated annual fuel cost figure for that year is rarely the one that matches the car in front of you. Match the row to the exact drivetrain, body style and engine on the window sticker or VIN before relying on the number, and use the comparison links below to see how those same configurations line up against rival models.

Where these Porsche Cayman figures come from

Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The Porsche Cayman record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.

Frequently Asked Questions About Cayman Fuel Cost

How much does it cost to fuel the Porsche Cayman?

The estimated annual fuel cost for the Porsche Cayman is $3,050 per year, based on 15,000 miles of driving and average fuel prices. Costs vary by trim and engine.

How much CO₂ does the Porsche Cayman produce?

The Porsche Cayman produces approximately 353 grams of CO₂ per mile. Lower numbers mean fewer emissions. See the table for per-trim details.

View full Porsche Cayman specs

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