A petrol forklift is an internal combustion (IC) lift truck powered by a gasoline engine. While less common than diesel, electric, or LPG models, petrol forklifts remain a viable option for specific applications—particularly outdoor operations in remote locations where other fuels are unavailable. However, their emissions, fuel efficiency, and indoor restrictions make them increasingly niche in modern material handling.
How Petrol Forklifts Work
Petrol forklifts use a standard gasoline engine similar to those found in cars, converting fuel into mechanical power to drive the wheels and operate the hydraulic system. The combustion of petrol produces carbon monoxide and other harmful emissions, requiring catalytic converters for any enclosed-space use. They are classified as Class IV or V forklifts under OSHA standards.
Key Specifications
Petrol forklifts are available in a wide range of capacities and configurations. The Heli CPQ20 is a gasoline-powered sit-down forklift with a rated load capacity of 4,409 lbs (2,000 kg). It is powered by a 43.4 hp H20 gasoline engine with a torque of 104.8 lb-ft. The mast lifts loads up to 9.9 ft (3,000 mm) with a maximum fork spread of 40.2 inches. The operating weight is approximately 7,319 lbs, supported by pneumatic tires for traction on various surfaces. Travel speed reaches 10.6 mph (16 kph) with a turning radius of 7.2 ft.
The Komatsu AX50 series offers petrol/LPG options with capacities around 1,750 kg (3,858 lbs). It features hydrostatic power steering for reduced operator fatigue, a new transmission design with a high-capacity oil cooler, and improved frame structure for enhanced durability.
Advantages
Fuel Accessibility: Gasoline is universally available. In remote or rural operations—agricultural sites, timber yards, or locations without LPG delivery infrastructure—a petrol forklift can be fueled from the same supply used for other equipment, avoiding propane contracts or charging infrastructure.
Lower Upfront Cost: Petrol forklifts are among the most affordable internal combustion options. A comparable gasoline counterbalance forklift typically costs $2,000–$8,000 less than an equivalent diesel model and $10,000–$25,000 less than a lithium-ion electric with similar capacity. Typical new petrol forklift prices range from $15,000 to $40,000.
Quick Refueling: Refueling takes just 5–10 minutes, comparable to diesel and significantly faster than battery charging. This enables continuous operation across multiple shifts without long downtime.
Good Cold Weather Performance: Petrol engines start reliably in cold conditions, unlike batteries that lose capacity in freezing temperatures.
Familiar Technology: Petrol engines are well-understood by most mechanics, making maintenance and repairs relatively straightforward.
Disadvantages
High Emissions: Petrol forklifts produce significant CO, HC, and NOx emissions. Combustion of petrol produces poisonous carbon monoxide, harmful to the environment and potentially fatal to humans even in small doses.
Indoor Restrictions: Petrol-powered forklifts are restricted or prohibited in enclosed warehouses. Only those equipped with catalytic converters are permitted indoors, and special care is required when handling the highly flammable fuel.
Poor Fuel Efficiency: Petrol engines have an efficiency of less than 40%—significantly worse than electric motors, which exceed 90% efficiency at nominal power. Fuel costs range from $3.50 to $6.00 per hour, higher than propane ($2.50–$4.50) or diesel ($2.00–$4.00).
Lower Power Than Diesel: Petrol forklifts generally produce less torque than diesel models, making them less suitable for the heaviest loads or steep gradients.
Declining Market Relevance: Petrol forklifts are increasingly restricted by tightening air quality regulations in many states and regions. Their emissions profile makes them a poor long-term investment for operations anticipating stricter environmental compliance.
Applications
Petrol forklifts are best suited for:
Outdoor operations in remote locations where gasoline is the only readily available fuel
Light-to-medium-duty outdoor material handling where diesel is overkill
Agricultural sites and timber yards with existing gasoline infrastructure
Construction projects with portable fueling needs
Rental fleets for short-term outdoor applications
They are not recommended for:
Indoor warehouses or enclosed facilities
Operations with strict emissions compliance requirements
Heavy-duty or continuous high-load applications
Environments sensitive to noise or air quality
Petrol vs. Diesel vs. Electric
Factor Petrol Diesel Electric
Upfront Cost Lowest ($15k–$40k) Moderate ($25k–$55k) Highest ($28k–$60k+)
Fuel/Energy Cost/Hour Highest ($3.50–$6.00) Moderate ($2.00–$4.00) Lowest ($0.50–$1.50)
Indoor Use Restricted/prohibited Restricted/prohibited Fully permitted
Emissions High High (particulates, NOx) Zero at point of use
Efficiency < 40% 40–45% > 90%
Maintenance Moderate Higher (DPF, DEF systems) Low
Max Capacity Up to 15,000 lbs Up to 35,000+ lbs Up to 15,000 lbs
The bottom line: A petrol forklift is an internal combustion lift truck powered by a gasoline engine. It offers lower upfront costs ($15,000–$40,000), quick refueling (5–10 minutes), and universal fuel availability—making it a practical choice for outdoor operations in remote areas. However, high emissions, poor fuel efficiency ($3.50–$6.00/hour), and indoor restrictions make it increasingly niche. Key models include the Heli CPQ20 (4,409 lb capacity, 10.6 mph travel speed) and Komatsu AX50 series (1,750 kg capacity with hydrostatic steering). Choose petrol for lightweight outdoor work in fuel-scarce locations; choose diesel for heavy loads and electric for indoor use.