GMC T15 (S15) Pickup MPG by year — every rating on record

The GMC T15 (S15) Pickup has a combined EPA fuel economy rating for 5 model years, from 1984 to 1988. Across those years its best rated version returned 21 mpg (1985) and its thirstiest returned 16 mpg (1986). The EPA record holds 37 configurations for this nameplate, most recently a Standard Pickup Trucks.

In the EPA record this nameplate also appears as T15 (S15) Pickup and T10 (S10) Pickup. The figures below cover every one of them.

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 T15 (S15) Pickup placed highest in 1984 at #2 of 10, and lowest in 1987 at #4 of 22. It spent 5 of its 5 ranked years in the top half of its class.

Every configuration on record

All 37 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 2 year-over-year steps improved the top rating.

What T15 (S15) Pickup fuel costs over a year

At the EPA's 11,500 miles a year, the 1988 GMC T15 (S15) Pickup burns 575 to 676 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 1988 model year is $3,100 to $3,650 a year in fuel, or $4,250 more than the average new vehicle over five years.

How it compares with other Standard Pickup Trucks

Across the 36 nameplates EPA classifies as Standard Pickup Trucks, the median best combined rating is 21 mpg. At 20 mpg the GMC T15 (S15) Pickup is 1 mpg below the median, which is worth about $96 a year at $3.50 a gallon.

• All Standard 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.