The Nissan Patrol TB48 engine is legendary among off-road enthusiasts for its robust power, reliability, and smooth performance. However, when it comes to fuel economy, the TB48 is often discussed with a mix of admiration and concern. If you’re considering a Nissan Patrol Y61 with the 4.8L TB48DE engine, or you already own one and want to understand its real-world fuel consumption, this comprehensive guide will answer all your questions.
What Is the TB48 Engine?
The TB48DE is a 4.8-liter, inline-six petrol engine produced by Nissan since 2001. It powers the fifth-generation Nissan Patrol (Y61) and is known for its:
- Displacement: 4758 cc
- Power Output: 245–250 hp
- Torque: 400–420 Nm
- Fuel System: Multi-point fuel injection
- Compression Ratio: 9.0:1
- Engine Weight: ~300 kg
This engine is revered for its durability, often exceeding 400,000 km with proper maintenance.
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TB48 Fuel Economy: What to Expect
Official Fuel Consumption Figures
| Driving Condition | L/100km | km/L | US mpg | UK mpg |
|---|---|---|---|---|
| Urban (City) | 25.0 | 4.0 | 9.4 | 11.3 |
| Extra Urban | 14.3 | 7.0 | 16.4 | 19.8 |
| Combined | 18.2 | 5.5 | 12.9 | 15.5 |
Real-World Owner Experiences
- City Driving: Most owners report fuel consumption between 20–25 L/100km (4–5 km/L), especially in heavy traffic or with a heavy right foot.
- Highway Driving: On open roads, fuel economy improves to 14–16 L/100km (6–7 km/L), but rarely exceeds this unless driving very conservatively.
- Off-Roading/Towing: Expect figures to worsen significantly, often exceeding 30 L/100km (less than 3.5 km/L), especially when towing or driving in sand.
Why Is the TB48 Fuel Consumption So High?
Several factors contribute to the TB48’s thirst for fuel:
- Large Displacement: At 4.8 liters, it’s designed for power, not efficiency.
- Vehicle Weight: The Patrol Y61 weighs over 2.5 tons, demanding more energy to move3.
- Aerodynamics: The boxy, off-road-friendly shape increases drag, especially at highway speeds.
- Old-School Engineering: While reliable, the TB48 lacks modern fuel-saving tech like direct injection or turbocharging.
How Does the TB48 Compare to Other Patrol Engines?
| Engine Code | Displacement | Fuel Type | Power (hp) | Combined Fuel Consumption (L/100km) | Notes |
|---|---|---|---|---|---|
| TB48DE | 4.8L | Petrol | 245–250 | 18–20 | Most powerful, thirsty |
| TB45E | 4.5L | Petrol | 200–215 | 16–18 | Slightly better economy |
| TD42 | 4.2L | Diesel | 123–145 | 12–14 | Best for fuel economy |
| ZD30 | 3.0L | Diesel | 158–170 | 10–12 | Most efficient |
Can You Improve TB48 Fuel Economy?
While the TB48 will never be a fuel-sipper, you can optimize its efficiency:
- Drive Smoothly: Avoid aggressive acceleration and high speeds.
- Maintain Tire Pressure: Under-inflated tires increase rolling resistance.
- Regular Maintenance: Clean air filters, fresh spark plugs, and a well-tuned engine help.
- Reduce Weight: Remove unnecessary cargo or roof racks.
- Use Quality Fuel: Higher-octane petrol can sometimes yield marginal improvements.
- Consider LPG Conversion: Some owners switch to LPG for lower running costs, though fuel economy remains similar in L/100km.
FAQs
Q: What is the average TB48 Patrol fuel consumption in city driving?
A: Most owners report 20–25 L/100km (4–5 km/L) in urban conditions.
Q: How far can I go on a full tank?
A: With a 95L tank and average combined consumption of 18.2 L/100km, expect a range of approximately 500–520 km before refueling.
Q: Does towing or off-roading affect fuel economy?
A: Yes, significantly. Consumption can exceed 30 L/100km when towing or driving in sand or mud.
Q: Is there a way to make the TB48 more fuel-efficient?
A: Minor improvements can be made with careful driving and regular maintenance, but don’t expect dramatic changes. LPG conversion can lower fuel costs but not actual consumption.
Q: Why do people still choose the TB48 despite its fuel consumption?
A: The engine’s reliability, smooth power delivery, and off-road capability make it a favorite among enthusiasts who value performance over economy.
Pros and Cons of the TB48 Engine
| Pros | Cons |
|---|---|
| Exceptional reliability | High fuel consumption |
| Strong power and torque | Expensive to run daily |
| Smooth and refined performance | Lower resale value in some regions |
| Excellent for towing and off-road | Heavier emissions |
| Long engine lifespan | Requires premium fuel in some markets |
Owner Tips for Managing TB48 Fuel Economy
- Plan routes to minimize stop-start driving.
- Use cruise control on highways where possible.
- Avoid idling for long periods.
- Keep up with scheduled services.
- Monitor fuel consumption to catch issues early (like a faulty MAF sensor or fuel pump).
Conclusion
The Nissan Patrol TB48 is a powerhouse built for those who prioritize capability and reliability over fuel savings. While its fuel economy is undeniably on the high side, many owners accept this as the price for owning one of the most respected engines in the off-road world. With realistic expectations and proper maintenance, you can enjoy the TB48’s strengths while managing its thirst as efficiently as possible.
If you’re considering a Patrol TB48, remember: it’s not about how little fuel you use, but how far you can go-on and off the beaten path.