GMC G15/25 Rally MPG by year — every rating on record

The GMC G15/25 Rally has a combined EPA fuel economy rating for 9 model years, from 1984 to 1992. Across those years its best rated version returned 19 mpg (1984) and its thirstiest returned 12 mpg (1985). The EPA record holds 64 configurations for this nameplate, most recently a Vans.

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 G15/25 Rally placed highest in 1984 at #3 of 9, and lowest in 1986 at #11 of 22. It spent 9 of its 9 ranked years in the top half of its class.

Every configuration on record

All 64 configurations EPA lists for this nameplate, newest first.

How the rating has moved between model years

Comparing the best-rated configuration of each year. 0 of 3 year-over-year steps improved the top rating.

What G15/25 Rally fuel costs over a year

At the EPA's 11,500 miles a year, the 1992 GMC G15/25 Rally burns 719 to 885 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 1992 model year is $4,150 to $5,600 a year in fuel, or $9,500 more than the average new vehicle over five years.

How it compares with other Vans

Across the 45 nameplates EPA classifies as Vans, the median best combined rating is 17 mpg. At 16 mpg the GMC G15/25 Rally is 1 mpg below the median, which is worth about $148 a year at $3.50 a gallon.

• All Vans 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.