The single biggest factor in fuel efficiency is driver behavior. Our data shows a 20-25% difference between the best and worst drivers on identical routes.

Key training elements:

• Progressive shifting: Shift up at 1,500-1,700 RPM, not 2,200 RPM
• Anticipatory driving: Look ahead, avoid unnecessary braking
• Speed management: Reducing speed from 90 km/h to 80 km/h saves 12-15% fuel
• Idle reduction: Idling consumes 3-4 L/hour – limit to 5 minutes
• Route knowledge: Familiar routes allow better planning

Incentive program: Pay drivers a bonus of 20-30% of fuel savings compared to baseline. This aligns their interests with yours.

Tyres account for 20-30% of total rolling resistance. Proper management delivers significant savings.

• Pressure monitoring: Check weekly. Under-inflated tyres (20% low) increase fuel consumption by 3-5% and reduce tyre life by 25%
• Recommended pressures: 120-125 psi (8.3-8.6 bar) for 12.00R20 on highway, 110 psi (7.6 bar) on rough roads
• Tyre selection: Fuel-efficient tyres (low rolling resistance) can save 2-4% – Triangle, Double Coin offer fuel-efficient models
• Alignment: Misalignment increases fuel consumption by 2-5% – check every 50,000 km

At highway speeds, aerodynamics matter significantly.

• Roof deflector: Reduces drag by 8-12% on tractor-trailer combinations – cost $800-1,200, payback 3-4 months
• Side fairings: Reduce gap turbulence between cab and trailer
• Gap reducers: Simple plastic panels that close the cab-trailer gap
• Mirrorless cameras: Emerging technology, 1-2% savings

• Air filters: Clogged filters increase fuel consumption by 4-8%. In dusty African conditions, clean or replace every 5,000 km
• Fuel filters: Use genuine filters – cheap imitations restrict flow
• Engine oil: Use correct viscosity (15W-40). Synthetic blends improve economy by 2-3%
• Injector maintenance: Worn injectors increase consumption by 5-15% – test every 100,000 km
• Brake drag: Check for dragging brakes – can increase consumption by 3-8%

• Avoid congestion: Plan trips outside peak hours where possible
• Terrain awareness: Some routes have gentler grades – may be longer but more fuel-efficient
• Border crossing planning: Avoid overnight waiting at borders – idle time wastes fuel
• GPS tracking with fuel monitoring: Systems like Mix Telematics, Cartrack identify inefficient routes

• Source fuel from reputable stations: Contaminated fuel damages injectors and reduces efficiency
• Install dual filters: 10 micron + 2 micron filtration protects injectors
• Cetane booster additives: Improve combustion efficiency by 2-4% – cost-effective
• Fuel polishing: For bulk storage, remove water and sediment

• Distribute load evenly: Proper weight distribution reduces drag and improves stability
• Remove unnecessary weight: Every 1,000 kg reduces fuel consumption by 0.5-1%
• Tarpaulins: Covering loads reduces aerodynamic drag

You cannot manage what you don’t measure. Install fuel monitoring systems that track:

• Instant fuel consumption (L/100km)
• Idle time percentage
• Harsh acceleration/braking events
• Speed violations
• Fuel theft alerts (sudden drops)

Systems cost $300-800 per truck and typically pay for themselves in 3-6 months.

• Use overdrive gears: FAST gearboxes have overdrive top gears – use them on flat highways
• Skip gears: When lightly loaded, skip gears (e.g., 4th to 6th)
• Downshift early: On hills, downshift before losing momentum

Set speed limiters to 85 km/h (many countries require 80 km/h for trucks). The difference between 90 km/h and 80 km/h is 12-15% fuel savings with only 1 hour lost per 1,000 km.

For long-haul trucks where drivers rest overnight, idling the main engine for air conditioning consumes 3-4 L/hour. An APU (auxiliary power unit) consumes 0.5-1 L/hour. Cost $4,000-6,000, payback 12-18 months.

Modern cruise control maintains steadier speed than most drivers. Use it on flat terrain. On hilly terrain, manual control may be better to avoid unnecessary downshifting.

Newer trucks (T7H, X3000) offer predictive cruise control that “sees” the road ahead using GPS and optimizes speed for hills. If available, use it.

Share fuel reports with drivers weekly. Praise good performers, coach poor performers. Peer competition works – display leaderboards.

• Bulk purchasing: Negotiate discounts with fuel suppliers for volume
• Fuel cards: Use branded fuel cards (Shell, Total, Vivo) for discounts and monitoring
• Cross-border fuel planning: Fuel prices vary by country – plan fill-ups