FuelFacts

← all 1986 Chevrolet Suburban K10 4WD trims

1986 Chevrolet Suburban K10 4WD — 6.2L 8-cyl, Automatic 4-spd, AWD

This 1986 Chevrolet Suburban K10 4WD (6.2L 8-cyl, Automatic 4-spd, AWD) runs on diesel. DIESEL

16
MPG combined (15 city / 20 hwy)
$4,481
est. fuel cost / year (today’s prices, 15k 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.

This 1986 model was originally EPA-tested under the pre-2008 2-cycle method, which didn't account for highway speeds over 60 mph, air-conditioner use, or cold starts. When EPA overhauled the test for model year 2008, city ratings fell by about 12% and highway by about 8% on average industry-wide — and EPA retroactively adjusted every 1984-2007 rating to the stricter standard so old and new cars could be compared fairly. The MPG above is already on that modern scale — the window sticker on this car when it was new likely showed a higher, pre-2008-method number.

Other 1986 Chevrolet Suburban K10 4WD trims

TrimFuelMPGFuel/yr
5.7L 8-cyl, Automatic 4-spd, AWDREGULAR12$4,750
5.7L 8-cyl, Automatic 4-spd, AWDREGULAR12$4,750
5.7L 8-cyl, 4-spd manual, AWDREGULAR11$5,182

EPA fuel type: Diesel · class: Special Purpose Vehicles · engine: 6.2L 8-cyl · transmission: Automatic 4-spd · drive: AWD · MPG retrieved 2026-07-24.