Sino Howo 4×2 oil Tank Truck: 

Large Capacity: 12,000-liter fuel tank, efficient bulk transportation.  

Powerful Performance: 300-horsepower engine provides strong torque, easily handling various transportation needs.  

European Standards: Complies with strict Euro 2/Euro 3 emission standards, ensuring environmental compliance.  

Comprehensive Service: Includes free spare parts and technical support.  

Durable Structure: Designed for heavy-duty use, with a robust construction.  

Large Capacity: 12,000-liter fuel tank, suitable for bulk transport.  

Durable Structure: Designed for heavy-duty use, equipped with a 300-400L fuel tank.  

European Standards: Complies with strict Euro 2/Euro 3 emission standards, ensuring environmental compliance.  

Powerful Performance: 300-horsepower engine provides strong torque for efficient towing.  

Comprehensive Service: Includes free spare parts, technical support, and installation training. 

For a 4x2 oil tank truck, the component template follows the same functional systems as a standard tank truck, but with key differences driven by the 4x2 chassis configuration.

A "4x2" means the vehicle has 4 wheel ends (two axles), with 2 of them being driven. This is typically a single rear axle truck, making it lighter, more maneuverable, and more fuel-efficient than a 6x4 (tandem axle) model.

Below is the component template tailored to a 4x2 oil tank truck.

1. Chassis & Structural Components

Component Specification for 4x2

Chassis Commercial truck chassis (e.g., Hino, Isuzu, Freightliner, Volvo) with a single rear drive axle.

Gross Vehicle Weight Rating (GVWR) Typically 15,000–26,000 kg (33,000–57,000 lbs) , depending on regional regulations.

Wheelbase Shorter than multi-axle trucks—usually 3,500–5,000 mm —to improve turning radius for urban delivery.

Suspension Leaf spring suspension on rear axle for load capacity; front axle often parabolic springs for ride comfort.

Subframe A lightweight yet reinforced subframe to mount the tank without overstressing the chassis rails.

2. Tank Body Components

The tank is generally smaller in capacity due to the reduced weight rating of a single axle.

Component Specification for 4x2

Tank Capacity Typically 5,000–12,000 liters (1,300–3,200 gallons) . Common sizes: 6,000L, 8,000L, 10,000L.

Tank Shape Elliptical or rectangular-elliptical to lower the center of gravity—critical for stability on a single-axle truck.

Number of Compartments Usually 1 to 3 compartments to allow delivery of different fuel grades (e.g., diesel, premium, regular) in one trip.

Material Carbon steel (standard), aluminum (lightweight), or stainless steel (corrosive products).

Internal Baffles Perforated baffles at each compartment to control surge; especially important on 4x2 trucks as they are more sensitive to liquid movement.

3. Fluid Handling System (Rear or Side Mount)

Due to the shorter chassis, the plumbing and equipment layout must be compact.

Component Configuration

Pump Compact gear pump or vane pump, often driven by a power take-off (PTO) from the truck’s transmission. Flow rates: 200–600 L/min (50–150 GPM).

API Bottom-Loading Adapters Standard 3" or 4" adapters for ground-level filling. Typically 2–3 adapters corresponding to compartments.

Vapor Recovery System A 2" or 3" vapor return line to capture fumes during bottom-loading—required in most regions.

Metering System Mechanical or electronic flow meter with a ticket printer for sales accuracy. Often mid-mount or rear-mount.

Hose Reel Typically 1 or 2 reels mounted at the rear, holding 15–30 meters (50–100 ft) of hose. Manual or spring-retractable.

Nozzle Automatic shut-off nozzle for safe dispensing.

Internal Emergency Valve Shear-section valve at each compartment outlet; closes automatically if impacted. Safety Components Component Notes

Static Grounding Reel Mandatory for bottom-loading; connects to the loading rack to prevent static discharge.

Overfill Protection System Probes or optical sensors in each compartment that communicate with the loading rack to stop filling when full.

Fire Extinguisher Typically two units: one at the cab, one at the equipment cabinet.

Spill Containment A drip tray or containment basin under the loading adapters and pump to catch small leaks.

Emergency Shutdown Remote pneumatic or electric stop for pump and engine in case of emergency.

5. Typical Configurations for a 4x2 Oil Tank Truck

Configuration Type Common Use Case

Urban Fuel Delivery Truck Delivering diesel/gasoline to gas stations in cities. Small footprint for narrow streets.

Commercial/Industrial Refueler On-site fueling for construction fleets, farms, or mining operations. Often equipped with a hose reel and meter.

Lube Oil / Waste Oil Truck Transporting lubricants or collecting used oil. May have multiple small compartments and a high-viscosity pump.

📌 Key Considerations for 4x2 vs. 6x4

Factor 4x2 (Single Axle) 6x4 (Tandem Axle)

Capacity 5,000–12,000 liters 15,000–30,000 liters

Maneuverability Excellent; ideal for city streets Requires wider turning radius

Fuel Efficiency Higher (lighter weight) Lower (more axles, heavier)

License Requirement Often can be driven with standard commercial license (varies by region) Usually requires heavy vehicle license

Cost Lower purchase and maintenance cost Higher initial and operating cost