Dapol B86 OO Gauge 14 Ton Tank Wagon "Shell Electrical Oils". ✅ Manufacturer: Dapol. A classicDapol B86 OO Gauge 14 Ton Tank Wagon, finished in the distinctiveShell Electrical Oils livery. Based on the traditional 14-ton petroleum tank wagons used to transport specialist oils and fuel products, this detailed model is an excellent addition to any steam or early diesel-era freight train.