1985 · Small Pickup · Diesel

1985 GMC S15 Pickup Diesel MPG & fuel economy

The 1985 GMC S15 Pickup Diesel is a small pickup offered in 4 EPA-rated configurations. The most efficient version returns 28 MPG combined (26 city / 31 highway) on diesel. Across the lineup, combined ratings range from 27 to 28 MPG. That's down 1 MPG from the 1984 model. Among 18 small pickups rated for 1985, it ranks 9th for lowest fuel cost. At 15,000 miles a year with $3.70/gal diesel fuel, it costs about $1,982 a year to fuel.

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Combined 28 MPG 26 MPG city · 31 MPG hwy
Driving range — not published for this model
Your fuel cost $1,982 15,000 mi/yr · $13.21 per 100 mi
Class rank, 1985 #9 of 18 Small Pickups by fuel cost

What will it cost you?

Your mileage and prices are saved and used across the site.

Fuel average

The 1985 GMC S15 Pickup Diesel's fuel average is 11.9 km/L (8.4 L/100 km), or 28 MPG combined: 11.1 km/L in the city and 13.2 km/L on the highway.

MPGkm/LL/100 km
City2611.19.0
Highway3113.27.6
Combined2811.98.4

How it ranks among 1985 Small Pickups

Full class ranking →
  1. 1Isuzu Pickup Diesel32 MPG $1,734
  2. 2Toyota Truck/T10026 MPG $1,788
  3. 3Toyota Truck/T100 Diesel30 MPG $1,850
  4. 4Nissan Truck25 MPG $1,860
  5. 5Isuzu Pickup25 MPG $1,860
  6. 9GMC S15 Pickup Diesel28 MPG $1,982
  7. 18Jeep Scrambler18 MPG $2,583
1985 S15 Pickup DieselOther small pickupsClass median: $2,002/yr

Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.

S15 Pickup Diesel MPG across model years

Full history →

4 EPA-rated configurations

ConfigurationTypeCityHwyCombinedRangeYour cost / yr
RWD · 2.2L 4-cyl · 4-speed manual
S15 Pickup 2WD		 Diesel 26 MPG 31 MPG 28 MPG — $1,982
RWD · 2.2L 4-cyl · 5-speed manual
S15 Pickup 2WD		 Diesel 26 MPG 33 MPG 28 MPG — $1,982
RWD · 2.2L 4-cyl · 4-speed manual
S15 Pickup 2WD		 Diesel 26 MPG 30 MPG 27 MPG — $2,056
RWD · 2.2L 4-cyl · 5-speed manual
S15 Pickup 2WD		 Diesel 25 MPG 30 MPG 27 MPG — $2,056

Specs (most efficient configuration)

Fuel
Diesel
Engine / motor
2.2L 4-cyl
Transmission
4-speed manual
Drivetrain
RWD
Tailpipe CO₂
364 g/mi

1985 GMC S15 Pickup Diesel vs. rivals

vs Chevrolet S10 Pickup Diesel 28 MPG · $1,982/yr Same fuel cost vs Mitsubishi Truck Diesel 28 MPG · $1,982/yr Same fuel cost vs Chevrolet S10 Pickup 23 MPG · $2,022/yr S15 Pickup Diesel saves $40/yr vs Nissan Truck Diesel 27 MPG · $2,056/yr S15 Pickup Diesel saves $73/yr vs Ford Ranger Diesel 27 MPG · $2,056/yr S15 Pickup Diesel saves $73/yr vs Nissan Truck 25 MPG · $1,860/yr Truck saves $122/yr vs GMC S15 Pickup 23 MPG · $2,022/yr S15 Pickup Diesel saves $40/yr

Compare the 1985 S15 Pickup Diesel

With any other car from any year, including other S15 Pickup Diesel model years. Type a year to jump, e.g. "2015 Accord".

Same year, other powertrains: 1985 GMC S15 Pickup (23 MPG)

Frequently asked questions

What is the gas mileage of the 1985 GMC S15 Pickup Diesel?

Up to 28 MPG combined (26 city / 31 highway); ratings range from 27 to 28 MPG depending on configuration.

What fuel does the 1985 GMC S15 Pickup Diesel use?

Diesel.

What is the fuel average in km/L for the 1985 GMC S15 Pickup Diesel?

The 1985 GMC S15 Pickup Diesel's fuel average is 11.9 km/L (8.4 L/100 km), or 28 MPG combined: 11.1 km/L in the city and 13.2 km/L on the highway.

How much does it cost to fuel the 1985 GMC S15 Pickup Diesel per year?

About $1,982 at 15,000 miles a year with $3.70/gal diesel fuel, or $13.21 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.

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