My old 400, 45 and 600 all ran great on SVO (new oil) - fond memories of taking a few big drums in the boot for a holiday to Cornwall during a fuel shortage many years ago
In winter starting was a bit slow so I'd have to 'water' it down with about 1/4 of a tank of Diesel to 3/4 of a tank of veggie - but in summer she was fine with 100% oil.