18-07-2021, 07:59 PM
I suspect that it is possibly designed for dual fuel, petrol or TVO. It was normal to get an engine warmed up on petrol before changing over. Many years ago using an early RP saloon when I was a poorly paid apprentice, I discovered that even 50% paraffin made the car very difficult to start when cold, but I soon worked out how to make it practical for the occasional 180 mile journey home.