I believe the only oil tanks that have suffered failures have been the early type with the dipstick filler cap rather than the internal level plates, fitted from 2013 on. This suggests the problem was with their manufacture rather than the installation, although I doubt that Morgan will admit to that. Emil's oil tank is beautifully engineered and an elegant solution to a problem that isn't there if the standard system is correctly maintained (make sure the vent line isn't plugged up) and you allow the oil to get hot enough to vaporise any water in the system. It does look great though, shame it's all hidden away.
