Whilst I do understand the concept of the E-number in unleaded fuel as well as the RON and the benefits both have for an engine, combined with the additional additives that the fuel companies put in their higher-performance versions, I am lacking in similar knowledge about Diesel fuel. Therefore my comments and questions are as follows:
1. I always use the higher-performance version available. Until recently I was very much a Shell V-Power man and have recently switch completely to Esso Synergy Supreme +99 as Esso clearly state that in most of the UK there is zero Ethanol in this fuel. I even use this in my lawnmower as it lasts far longer in the tank which is very helpful over the winter.
2. I have therefore blindly used the equivalent higher-performance Diesel in my Range Rover, however I have no idea what the B-number is and as Diesel doesn't have a RON I am beginning to wonder if there is a similar benefit in paying the extra for the allegedly better fuel. Is anyone able to assist me in understanding a little more about the make up and differences between regular Diesel and, say V-Power Diesel so I can make a more informed choice?
