Toroidal vs. Cylindrical LPG Tanks: Which to Choose?

When you consider an autogas conversion, one key decision is the LPG tank type. Your choice between a toroidal or cylindrical tank impacts boot space, driving range, and ultimately, your daily convenience. Let’s look at how each option fits your needs.

Toroidal Tanks: Space-Saving Solutions

Toroidal tanks are doughnut-shaped, designed to fit neatly into your car’s spare wheel well. This integration is their primary benefit: it keeps the tank out of sight and preserves most of your boot space. For vehicles with an external spare wheel, a toroidal tank can sometimes be mounted underneath, minimizing its impact on interior cargo room even further. Capacities are generally smaller than cylindrical tanks, limited by the spare wheel well’s dimensions. This makes them ideal for drivers who prioritize cargo space and don’t need the absolute longest range between fill-ups. All our installations, including those with toroidal tanks, meet strict safety standards, incorporating at least two safety levels, automatic gas shut-off, and multivalve systems, standard for 4th generation and newer kits.

Cylindrical Tanks: Maximizing Range

Cylindrical tanks are larger, offering significantly higher capacity than their toroidal counterparts. Typically mounted in the vehicle’s boot, this placement will reduce your available cargo space. However, the trade-off is a much greater driving range on LPG. For high-mileage drivers, such as taxis, this extended range means fewer stops at the pump and faster payback, which usually occurs within 10-18 months. The increased capacity also translates to greater fuel savings over time. We use robust components from trusted brands like Alex, AC Stag, Lovato, Landi Renzo, Digitronic, and Tomasetto for these installations.

Making Your Choice: Vehicle and Driving Habits

The best tank for you depends on your specific vehicle and how you use it. If boot space is crucial for daily tasks – perhaps you frequently carry large items or have a family – a toroidal tank is often the better choice. You might accept a slightly shorter range to maintain practicality. Conversely, if you drive long distances regularly and want to maximize fuel savings, the larger capacity of a cylindrical tank will serve you better, even with reduced boot space. Not all cars are suitable for every tank type; some lack a spare wheel well for a toroidal tank, or a boot large enough for a high-capacity cylindrical one without becoming impractical. Our team at GBO Eesti, located at Magasini tn 31b, 10138 Tallinn, has been providing autogas solutions since 2014 and can assess your vehicle and driving habits to recommend the optimal setup.

The GBO Eesti Conversion Process

Choosing the right tank is just one part of a comprehensive autogas conversion. Our turnkey LPG installation services cover everything from certified parts to the necessary documentation for mandatory registration with the Transpordiamet (Transport Administration), a requirement in Estonia since 2023. Installation costs vary by cylinder count and system generation: for 3-4 cylinder engines, options range from Econom 900€ to Premium 1600€; 5-6 cylinder engines from Standart 1300€ to Premium 1650€; and 8 cylinder engines from Standart 1600€ to Premium 1900€. We also handle maintenance, repair, diagnostics at 40€/h, and conversion registration (ARK) from 120€.

Real Savings and Next Steps

Regardless of your tank choice, converting to LPG offers substantial fuel savings, typically around 35-45% compared to petrol. While LPG costs roughly half per litre, consumption is about 10-15% higher by volume, but the overall cost per kilometre is significantly lower. To get a precise estimate of your potential savings and payback period, try our savings calculator. For a personal consultation or to discuss your specific needs, call us at +372 5619 8765 or visit our workshop at Magasini tn 31b, 10138 Tallinn. We’re here to help you make an informed decision.