Ford Grand C-Max — MPG & Fuel Costs 2025
A seven-seat compact MPV featuring sliding rear doors for easy access. Shares the Focus chassis.
The Ford Grand C-Max is the larger seven-seat version of the standard C-Max, featuring sliding rear side doors that make it highly practical for family use in tight parking spaces.
Engines include the popular 1.0-litre EcoBoost petrol and a range of efficient TDCi diesels. The diesel models are highly recommended if the vehicle is regularly loaded to capacity.
Real-world fuel economy is respectable, with the 1.6/2.0 TDCi diesels achieving 50+ MPG on the motorway, while the 1.0 EcoBoost petrol averages around 38 MPG.
TL;DR
39 MPG
Real-world petrol
52 MPG
Real-world diesel
60L
Tank capacity
£82.08
Full tank (petrol)
15.9p
Per mile (petrol)
Real-World Fuel Economy: The Ford Grand C-Max achieves an estimated 39 MPG (petrol) and 52 MPG (diesel) in real-world UK driving conditions, accounting for a 12% WLTP real-world penalty.
Forecourt Fuel Cost: Refueling the 60-litre tank completely costs approximately £82.08 (petrol) or £85.26 (diesel) at average UK fuel price rates.
Fuel economy at a glance
39
Real-world MPG
Petrol
45.6
Official WLTP
Petrol
52
Real-world MPG
Diesel
61.4
Official WLTP
Diesel
Annual fuel costs by mileage
| Annual mileage | Petrol | Diesel |
|---|---|---|
| 5,000 miles/yr | £797 | £621 |
| 7,400 miles/yr(UK average) | £1180 | £919 |
| 10,000 miles/yr | £1595 | £1242 |
| 15,000 miles/yr | £2392 | £1863 |
| 20,000 miles/yr | £3189 | £2485 |
| Full tank (60L) | £82.08 | £85.26 |
| Cost per mile | 15.9p | 12.4p |
Based on UK average fuel prices: petrol 136.8p/L · diesel 142.1p/L. Prices updated regularly.
How does the Grand C-Max compare?
Tips to get better MPG from your Grand C-Max
Sliding doors add weight; keep the cabin clean of excess clutter to save fuel.
The 1.0 EcoBoost works hard in this large body; avoid heavy acceleration when fully loaded.
Check wheel alignment annually as uneven tyre wear severely impacts fuel economy.
Is the cheaper petrol station worth it?
In a Ford Grand C-Max achieving ~39 MPG real-world, if you fill 48 litres and the alternative station is 10p/litre cheaper:
£4.80
Gross saving on fuel
£0.48
Cost of 3-mile detour
£4.32
Net saving ✓
You could drive up to 30 miles round-trip before the saving disappears entirely.
Calculate for your exact situationPopular variants
Frequently asked questions
What is the real-world MPG of the Ford Grand C-Max?
The Ford Grand C-Max achieves approximately 39 MPG in real-world petrol driving — around 12% lower than the official WLTP figure of 45.6 MPG due to real driving conditions. Diesel variants achieve around 52 MPG real-world.
How much does it cost to fill a Ford Grand C-Max?
The Ford Grand C-Max has a fuel tank of 60 litres. At the UK average of 136.8p/litre for petrol, a full tank costs approximately £82.08. Diesel costs approximately £85.26 for a full tank.
What is the annual fuel cost for a Ford Grand C-Max?
At the UK average annual mileage of 7,400 miles and current petrol price of 136.8p/litre, a Ford Grand C-Max costs approximately £1180 per year in fuel. At 10,000 miles/year the cost rises to £1595. Actual costs vary with your driving style and mileage.
Is it worth driving to a cheaper petrol station in a Ford Grand C-Max?
In a Ford Grand C-Max doing ~39 MPG real-world, driving 3 miles round-trip to save 10p/litre on a 48-litre fill nets approximately £4.32 after the extra fuel cost. You could drive up to 30 miles before the saving is eaten up. Use the WorthThePump calculator for your exact situation.
How much does the Ford Grand C-Max cost per mile in fuel?
The Ford Grand C-Max costs approximately 15.9p per mile in petrol at current UK prices. Over a typical commute of 30 miles per day, that is approximately £4.77 per day in fuel.
What is the WLTP MPG figure for the Ford Grand C-Max?
The official WLTP fuel economy figure for the Ford Grand C-Max is 45.6 MPG. However, real-world MPG is typically 10–15% lower than WLTP due to cold starts, air conditioning, motorway speeds, and varying loads. WorthThePump uses a 12% real-world penalty to give a more accurate estimate.
Related guides
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