2019 Cadillac CT6 — 2.0L 4-cyl, S10 automatic, RWD
This 2019 Cadillac CT6 (2.0L 4-cyl, S10 automatic, RWD) takes premium gasoline. PREMIUM
28
MPG combined (24 city / 34 hwy)
$2,507
est. fuel cost / year (today’s prices, 15k mi)
317 g/mi
tailpipe CO₂
At today's AAA national average price ($4.68/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.
The EPA lists this trim as premium because that's the fuel the manufacturer specified for its mileage test. Many such engines will run on regular with slightly lower power and MPG — but check your owner's manual to see whether premium is required or just recommended.
EPA fuel type: Premium · class: Large Cars · engine: 2.0L 4-cyl turbo · transmission: S10 automatic · drive: RWD · MPG retrieved 2026-07-24.