Part of the data ring
RunCost
Two sheets, one bench · Midsize-Large Station Wagons

Caprice Wagon vs 300TE

Chevrolet Caprice Wagon against Mercedes-Benz 300TE, two test sheets laid side by side.

Chevrolet Caprice Wagon

17.5
MPG · $2743/yr
vs

Mercedes-Benz 300TE

18
MPG · $2667/yr
More efficient

The gap, in fuel

$76a year between them

The Mercedes-Benz 300TE is more efficient — 18 MPG against 17.5 for the Chevrolet Caprice Wagon. Over 15,000 miles a year at $3.20 a gallon that is a saving of about $76 a year, or $381 over five years.

SOURCE·US EPA fuel-economy test data·FUEL ASSUMED AT $3.20/GAL FROM JUL 2026·REVIEWED JUL 2026

How this is worked out

  1. Start from the EPA combined figure for the model year — a laboratory test cycle run to a fixed procedure, not a road result. Where a year sold several engines or drivetrains, the trims are averaged and the trim count is printed beside the row so you can see how much averaging is behind it.
  2. Fix a pump price. This site keeps one reference price, $3.20 a US gallon, fixed JUL 2026 and printed next to every dollar figure it produces. It is an assumption with a date on it, not a quote — put your own price in.
  3. Fix an annual distance. Every annual figure on this site uses 15,000 miles a year, roughly the US average. A cost per year with no stated distance is not a number, it is a mood.
  4. Divide distance by economy for gallons, multiply by price for the year's fuel, divide price by economy for one mile. The per-kilometre line is that last figure divided by 1.609344 — the same money, in the unit most of the world drives in.
  5. Stop there. No depreciation, no tyres, no insurance, no servicing. This is the fuel line of the ledger and it is labelled as one; depreciation usually dwarfs everything on it.
gallons/yr = miles/yr ÷ MPG
fuel  $/yr = gallons/yr × $/gal
cost  $/mi = $/gal ÷ MPG
cost  $/km = cost $/mi ÷ 1.609344

The full method, the licence note, and what a test figure cannot tell you →

Both sheets, line for line

Chevrolet Caprice WagonMercedes-Benz 300TE
Combined economy 17.5 18
Best year on record 21 18
Worst year on record 15 16
Average across all years 17.5 16.8
Fuel per year 2743 2667
Gallons per year 857 833
CO₂ g/mi 508 494
Model years tracked 10 6
ClassMidsize-Large Station WagonsMidsize-Large Station Wagons
Years1984–19931988–1993

Highlighted cells are the better of the two on that measure. Fuel costs at $3.20/gal over 15,000 miles.

SOURCE·US EPA fuel-economy test data·FUEL ASSUMED AT $3.20/GAL FROM JUL 2026·REVIEWED JUL 2026

Questions asked across the counter

Which is more fuel efficient, the Chevrolet Caprice Wagon or the Mercedes-Benz 300TE?

The Mercedes-Benz 300TE is more efficient — 18 MPG against 17.5 for the Chevrolet Caprice Wagon. Over 15,000 miles a year at $3.20 a gallon that is a saving of about $76 a year, or $381 over five years.

Which is cheaper to run, the Chevrolet Caprice Wagon or the Mercedes-Benz 300TE?

On fuel alone, the Mercedes-Benz 300TE: $2667 a year against $2743 for the Chevrolet Caprice Wagon, both at $3.20 a gallon over 15,000 miles — an assumption fixed JUL 2026. Fuel is the only line being compared: depreciation, insurance, tyres and servicing are not in it, and they routinely matter more than this gap.

Is the difference big enough to change the decision?

Across five years of that same driving the gap comes to about $381. That is real money, and it is also roughly what one year of depreciation does to a new car — so treat it as one line in the ledger rather than the whole argument.

Both entries carry the full year-by-year history and the pump-price ledger. Estimates based on official test figures and average fuel prices. Real-world consumption varies with driving style, load, terrain and maintenance.

See all 10 sites in this family, with what each one answers

Published by

Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.