Quite a difference though ... BP is 97 RON whereas Shell V Power is 99 RON .. with AMG recommending 98 RON I'd skip BP unless desperate ...
What fuel do you use in your car?
- Thread starter c3nturi0n
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Quite a difference though ... BP is 97 RON whereas Shell V Power is 99 RON .. with AMG recommending 98 RON I'd skip BP unless desperate ...
Seems like Esso Synergy Supreme+ 99 now trumps Shell V Power. It is badged as E5 but actually has no ethanol added in most parts of England so will perform slightly better...
Synergy Fuels | Esso
Esso branded service stations have a variety of Synergy fuel blends (grades) to help you get to where you're going. Learn more here.www.esso.co.uk
I once had to pull into Esso as desperate (was on Tesco Momentum before) and the difference was almost immediately noticeable .. It is more expensive but I am now almost exclusively go to Esso .. with nectar card you get 5p off a litre too so I tend to fill up 75 ish litres at a time.
sgregory124
MB Enthusiast
I have to say, I filled up with Esso 99 a few weeks ago as I was on fumes and it was the nearest station to where I was and I also noticed a positive effect - on economy. I certainly seemed to get more mileage out of a full tank than anything else i've used. Can't replicate it unfortunately as no Esso garages anywhere near my home...
100% - I get about 40 miles more out of a tank compared to Tesco .. I know people say here 'it is all coming from the same place, additives bla' - but I can even show my petrol app proving that there IS a difference... Sure, 40 miles isn't worth the 20p premium over tesco alone, but car drives so much smoother and is so much more reactive ... .
ALFAitalia
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Don't forget that quoted UK RON rating are a minimum....so chances are it will be higher than 97 anyway as 97 is the minimum it can legally be when sold.
Something I found online.
"The difference between premium and super unleaded at the UK forecourt these days is a maximum of two points (97 octane versus 99) and the chance of a modern engine being damaged by the lower of the two is nil. However, the engineers calibrating higher-performance engines and chasing the best performance numbers are likely to have done so using the highest-octane pump fuel available.
According to below the differences get less as the RON number increase (so the benefits are not linear). So the difference between 95 and 97 (on a car that can take advantage of fuel over 95) is noticeable but the difference between 978 and 99 (or even 102 in the test below) is negligible and not usually noticeable. So id be surprised if the gent above could feel the difference between the 97 and the 99.....such a small difference that the variables of the day (air density or even the quality of that particular batch, driving style) will probably make more difference.
https://pdf.sciencedirectassets.com/277910/1-s2.0-S1876610219X0003X/1-s2.0-S1876610218312128/main.pdf?X-Amz-Security-Token=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&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20220509T142108Z&X-Amz-SignedHeaders=host&X-Amz-Expires=300&X-Amz-Credential=ASIAQ3PHCVTYWUDRFRM2/20220509/us-east-1/s3/aws4_request&X-Amz-Signature=35512a88fac805184af852076c048bcae4f5fe6c97b21014daba65a70c466ea1&hash=3a07fe1d294b2d7822abeff66223bc47897b65f8a9e680a75ffca849812916b8&host=68042c943591013ac2b2430a89b270f6af2c76d8dfd086a07176afe7c76c2c61&pii=S1876610218312128&tid=spdf-2e3048c9-d775-4870-9431-ec8d535c387a&sid=2e6a6ef47e38a54e3f880559e517e2a5c8dcgxrqb&type=client&ua=4d565b055456515e025f01&rr=708b1470c9e372ac
Last edited:
Oop's my mistake it states 95 RON
ALFAitalia
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95...and it still is.
That's what I thought. So the problems I'm having with certain engine codes (see my posts on other threads on this forum) is to do with the Ethanol content. As it seems I've only had the problems since using E10 The codes have not come back since I've used Tesco Momentum.
ALFAitalia
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I still see that as coincidence........E10 is 10% ethanol MAXIMUM......in reality its between 5 and 10%......so its just a few percent (1 to 5) more ethanol that the Momentum. Ethanol its self has a far higher octane rating than pure petrol (why drag racers run their AMGs on E85 in the States and you can get Flex fuel kits (basically bigger injectors) to enable most Mercs to run E85 on the road.....its much cheaper over there). If it did affect the running of your car (and I'm not saying if definitely didn't) Id be interested to know how such a small change could flag an EML. Even the cars that should not be run on it could if it was not for rubber/plastic component's not being ethanol proof.....its not that it affect combustion or could damage a valve etc. if there was some intrinsic reason to the E10 to trip the light I think we would be seeing it on lots of makes/models of cars all over the place.....and AFAIK that's not the case.
Local Esso taking the piss here
Fair point but needs must when we are running low
mmerc
Active Member
Shell diesel only
The only thing I could put it down to "coincidence" is that it could be a sensor that is faulty and the Ethanol is triggering it off. I don't know. All I can say is that I'll probably carry on using E5
