GMC S15 Pickup MPG by year — every rating on record

The GMC S15 Pickup has a combined EPA fuel economy rating for 7 model years, from 1984 to 1990. Across those years its best rated version returned 29 mpg (1984) and its thirstiest returned 16 mpg (1987). The EPA record holds 66 configurations for this nameplate, most recently a Small Pickup Trucks / Standard Pickup Trucks.

Year-by-year EPA ratings

Where it has stood in its class

Ranked against every other nameplate the EPA filed under the same class that year. The GMC S15 Pickup placed highest in 1984 at #3 of 10, and lowest in 1987 at #8 of 11. It spent 6 of its 7 ranked years in the top half of its class.

Every configuration on record

All 66 configurations EPA lists for this nameplate, newest first.

How the rating has moved between model years

Comparing the best-rated configuration of each year. 1 of 5 year-over-year steps improved the top rating.

What S15 Pickup fuel costs over a year

At the EPA's 11,500 miles a year, the 1990 GMC S15 Pickup burns 523 to 719 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.

EPA’s own estimate for the 1990 model year is $2,850 to $3,900 a year in fuel, or $3,500 more than the average new vehicle over five years.

How it compares with other Small Pickup Trucks

Across the 20 nameplates EPA classifies as Small Pickup Trucks, the median best combined rating is 25 mpg. At 22 mpg the GMC S15 Pickup is 3 mpg below the median, which is worth about $220 a year at $3.50 a gallon.

• All Small Pickup Trucks rankings — every nameplate in the class, best to worst.

Other GMC nameplates

Every GMC model compared → — all nameplates ranked by best combined rating, with what each one costs a year.