SMARTLY Posted September 3, 2019 Report Share Posted September 3, 2019 Petrol is now labelled E5 and diesel is B7. 1 Quote Link to comment Share on other sites More sharing options...
Viking Posted September 3, 2019 Report Share Posted September 3, 2019 Yep, had the pumps restickered today at the wife's place of work. Not much more confusing is it... Circles for petrol, squares for diesel. Yet the pump nozzles are both still round. Make diesel a square pump nozzle and a square hole in the filler and it'd make sense. Quote Link to comment Share on other sites More sharing options...
CP09 Posted September 3, 2019 Report Share Posted September 3, 2019 Do check your car handbook - some of the classic cars/old models don't like ethanol. It can affect the fuel lines (the flexible ones) and some seals... Colin Quote Link to comment Share on other sites More sharing options...
Viking Posted September 3, 2019 Report Share Posted September 3, 2019 The fuel hasn't changed, only the labelling system. E5 is still 5% biofuel petrol and B7 is still 7% biofuel diesel. As it has been for about 10 years or more. Quote Link to comment Share on other sites More sharing options...
jammy Posted September 3, 2019 Report Share Posted September 3, 2019 Whats the point in confusion just leave it as it was Quote Link to comment Share on other sites More sharing options...
Viking Posted September 3, 2019 Report Share Posted September 3, 2019 It'll actually be less confusing than at present. Currently there's no standard for fuel nozzle / pump labelling. Manufacturers and suppliers can pretty much use whatever colour they want for the nozzles, and generally it's green for unleaded petrol and black for diesel. But green is used for standard unleaded and also super unleaded and people fill up with high octane fuel by mistake all the time, while diesel is sometimes yellow but mostly black, and again the same colour is used for high cetane diesel with the same results. Quote Link to comment Share on other sites More sharing options...
jammy Posted September 3, 2019 Report Share Posted September 3, 2019 I say pay more attention to what ones doin leople will refuel with the wrong fuel regardless of the label Quote Link to comment Share on other sites More sharing options...
Tony Posted September 4, 2019 Report Share Posted September 4, 2019 I suppose there needs to be labelling to divert blame but isn't the nozzle size different between diesel and petrol already? Quote Link to comment Share on other sites More sharing options...
SMARTLY Posted September 4, 2019 Author Report Share Posted September 4, 2019 It is, but not all cars have fillers that stop the wrong one going in. Quote Link to comment Share on other sites More sharing options...
Tony Posted September 4, 2019 Report Share Posted September 4, 2019 The error must be demising now the older cars are disappearing from the pumps. I think the labelling is more a protection by the station rather than true instruction. Nevertheless I don't think it's a bad thing. Quote Link to comment Share on other sites More sharing options...
Rich Posted September 4, 2019 Report Share Posted September 4, 2019 I wouldn't have even noticed if you hadn't put this thread up. I don't fill up that often now! Green is petrol and black is diesel, that's what I look at. Quote Link to comment Share on other sites More sharing options...
Sagitar Posted September 4, 2019 Report Share Posted September 4, 2019 Like Rich, I wouldn't otherwise have noticed, so thanks for the "heads up". I use the pumps so infrequently that I have difficulty remembering how to do it . . . . :-) Quote Link to comment Share on other sites More sharing options...
MondeoGhiaX Posted October 26, 2019 Report Share Posted October 26, 2019 Was there any indication of the ethanol/biodiesel content on the pumps before this? Unless things have changed recently, there is no requirement for ethanol in super unleaded petrol, and in most parts of the country it may still be ethanol free. (Running an "older" car in Cornwall, I know it isn't ethanol free here). Quote Link to comment Share on other sites More sharing options...
Tony Posted October 27, 2019 Report Share Posted October 27, 2019 Do older car running on ethanol free have engine knocking? Quote Link to comment Share on other sites More sharing options...
MondeoGhiaX Posted October 28, 2019 Report Share Posted October 28, 2019 I'm a bit rusty on this subject now, but I think engine knock/pinking is more down to the octane rating and can be adjusted out by retarding the ignition slightly. As mentioned above, ethanol is known to rot older rubber fuel lines and seals. Most of mine have been replaced now, and I use an additive to combat the effects of ethanol in petrol, along with the absence of lead. Quote Link to comment Share on other sites More sharing options...
Tony Posted October 28, 2019 Report Share Posted October 28, 2019 Isn't lead part of the ingredients to stop the knock in the early days? .... I've seen some "knock" testing as part of the petroleum manufacturing proses, does this still apply? Quote Link to comment Share on other sites More sharing options...
MondeoGhiaX Posted October 29, 2019 Report Share Posted October 29, 2019 Lead definitely reduces knocking and is an octane booster. It's also a lubricant, which was was the biggest concern for classic car owners I think. It's unfortunate that it's poisonous too, though! Quote Link to comment Share on other sites More sharing options...
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