Most drivers know the basics of fuel-efficient driving: don't speed, avoid harsh braking, keep tyres inflated. But there's a whole world of advanced techniques used by "hypermilers" - enthusiasts who compete to achieve extraordinary fuel economy.
What is Hypermiling?
Hypermiling is the practice of driving in ways that maximise fuel efficiency. Some hypermilers achieve 20-30% better economy than official figures, and a few extreme practitioners double their car's rated MPG.
Safe Hypermiling Techniques
1. Pulse and Glide
Instead of maintaining constant throttle, accelerate gently to slightly above your target speed, then coast back down before repeating. This is more efficient than steady-state driving in most cars.
How to do it: 1. Accelerate gently to 5mph above your target speed 2. Lift off the throttle and coast until 5mph below target 3. Repeat
2. The DWL (Driving Without Load)
In cars with instant fuel consumption displays, aim to keep the readout at its lowest by using the absolute minimum throttle needed to maintain speed.
3. Strategic Route Selection
- Avoid hills where possible (or choose routes where uphills are followed by downhills)
- Use routes with fewer traffic lights
- Consider slightly longer routes if they're more flowing
4. Drafting (With Caution)
Following larger vehicles at a safe distance does reduce aerodynamic drag. However: - Never follow closer than the 2-second rule - The effect is minimal at safe distances - It's not worth compromising safety
5. The "Fake Hybrid" Technique
When approaching junctions or traffic, lift off the throttle early and coast. Most modern cars cut fuel completely when coasting in gear, making this essentially free distance.
Preparation Matters
Weight Reduction
Every 50kg removed improves fuel economy by roughly 2%: - Remove roof boxes when not in use - Clear out the boot - Don't carry unnecessary items
Aerodynamics
- Close windows at speed (use air con instead above 40mph)
- Remove roof bars when not needed
- Lower windows cause more drag than you'd think
Tyre Pressure
Check pressures weekly. Under-inflation by just 10% can reduce economy by 3-5%. Some hypermilers inflate to the maximum safe pressure marked on the tyre sidewall.
Engine Warm-Up
A cold engine uses significantly more fuel: - Don't idle to warm up - drive gently instead - Combine short trips where possible - Park facing the sun in winter
Reading the Road
Expert hypermilers anticipate what's ahead:
- Watch traffic lights - Time your approach to avoid stopping
- Look beyond the car ahead - See hazards earlier, brake less
- Use junctions wisely - Turn left where possible (less waiting)
- Avoid peak hours - Stop-start traffic kills economy
Technology Helps
Instant MPG Display
If your car has one, use it! Watching your real-time consumption makes you naturally more efficient.
Cruise Control
Use on flat, empty roads. Disable on hills or in traffic.
Eco Mode
Engage it. The softer throttle response naturally encourages efficient driving.
The Results
A dedicated hypermiler might achieve:
| Car Type | Official MPG | Hypermiler MPG |
|---|---|---|
| Small petrol | 55 | 70-80 |
| Medium diesel | 60 | 75-85 |
| Hybrid | 65 | 80-100+ |
Safety First
Some extreme hypermiling techniques are dangerous and should be avoided: - Coasting in neutral (reduces control) - Extreme drafting (tailgating) - Ignoring traffic flow (frustrating other drivers) - Running on empty to reduce weight
The best hypermilers achieve great results while remaining safe, legal, and considerate to other road users.