Shell 99 V Tesco 99
Discussion
My local tuner asked me to fill up with some Shell 99 before going over to his shop for a session on the rollers but I don't really have any shell garages near where i live. Do you think there's much diffrence between Shell 99 and Tesco 99. Lots of them about. I'm asking about the petrol, is one better than another. It's nice to stick with the one the car was tuned to If you know what i mean, and for me that would be tesco 99 thanks.
Did a logging session with a friend one in my 2014 Leon Cupra 280, it was running APR Stage 2 software specifically for 98ron +, after a few pulls he turned to me and said "your running Tesco Momentum aint ya" I was like yeh why?
car was pulling a lot of timing, he then showed me logs from 2-3 other similar cars (MK7 Golf R's) which were also pulling the same on Momentum99.
Few days later after running a tank of Shell (then called Nitro+) we did logging again and pulls were all a lot better.
My current car has mapping available for 95,98 and 102 so I switch them as needed if I can't find 98+
car was pulling a lot of timing, he then showed me logs from 2-3 other similar cars (MK7 Golf R's) which were also pulling the same on Momentum99.
Few days later after running a tank of Shell (then called Nitro+) we did logging again and pulls were all a lot better.
My current car has mapping available for 95,98 and 102 so I switch them as needed if I can't find 98+
All petrol in your area comes from the same refinery though?!
The big brands do add some additives, but we’re talking 0.001% and certainly not enough to make any noticeable difference whatsoever.
It’s a commonly pedalled myth that supermarket fuel is of a lesser quality, but scientifically they’re effectively identical
(Supermarkets are the biggest retailer of fuel in the UK, so do you think they’d sell you s
te?)
The big brands do add some additives, but we’re talking 0.001% and certainly not enough to make any noticeable difference whatsoever.
It’s a commonly pedalled myth that supermarket fuel is of a lesser quality, but scientifically they’re effectively identical
(Supermarkets are the biggest retailer of fuel in the UK, so do you think they’d sell you s
te?)it's entirely anecdotal but I used to run Tesco 99 on my R53 mini cooper s (supercharged), swapped to shell 99 and got about a 5% fuel economy benefit, then tesco started doing 10p off a litre and the fuel economy benefit was no longer worth the higher price at shell and the fuel economy went back down when I went back to tesco. Went back up when I switched back to shell after the 10p off a litre promo ended. All tracked with brim to brim fill ups using an app that recorded mileage and fill volume, filling with less than 1/4 tank left (typically filled once the fuel light came on) so minimal "contamination" when changing between fuels.
No, it wasn't a scientific study, no I didn't drive exactly the same every time and as it was "tested" over the course of many months, weather will have played a factor. But all that considered, the changes in fuel economy when swapping between fuels stood out.
I don't buy the argument that it's all the same stuff just coming out a different pump. No Tesco don't refine their own fuel, they buy it in, but if they don't buy it in from Shell (or whoever shell buy theirs in from), then it's not going to be the same.
No, it wasn't a scientific study, no I didn't drive exactly the same every time and as it was "tested" over the course of many months, weather will have played a factor. But all that considered, the changes in fuel economy when swapping between fuels stood out.
I don't buy the argument that it's all the same stuff just coming out a different pump. No Tesco don't refine their own fuel, they buy it in, but if they don't buy it in from Shell (or whoever shell buy theirs in from), then it's not going to be the same.
Google this question and read the millions of threads across millions of sites that this has already been discussed on.
Fuel comes from the same place. Different companies add different additives. You do not see cars littering the roads around supermarket forecourts having broken down from their fuel.
Just stick in the right RON fuel and drive the car. Job done.
Fuel comes from the same place. Different companies add different additives. You do not see cars littering the roads around supermarket forecourts having broken down from their fuel.
Just stick in the right RON fuel and drive the car. Job done.
This does come up quite a bit.
Almost all 'car guys' I've spoke to, tuners, specialist garage owners, mechanics etc. recommend Shell V Power and say that Momentum99 is not very good fuel.
It's hard to know if it's just one of those things that gets parroted about so much it becomes Petrolhead folklore, or if there's anything in it.
I stick to filling with Shell V Power for my own peace of mind.
I wouldn't worry too much about sticking the odd tank of Momentum in if needed.
Almost all 'car guys' I've spoke to, tuners, specialist garage owners, mechanics etc. recommend Shell V Power and say that Momentum99 is not very good fuel.
It's hard to know if it's just one of those things that gets parroted about so much it becomes Petrolhead folklore, or if there's anything in it.
I stick to filling with Shell V Power for my own peace of mind.
I wouldn't worry too much about sticking the odd tank of Momentum in if needed.
p4cks said:
All petrol in your area comes from the same refinery though?!
The big brands do add some additives, but we’re talking 0.001% and certainly not enough to make any noticeable difference whatsoever.
It’s a commonly pedalled myth that supermarket fuel is of a lesser quality, but scientifically they’re effectively identical
(Supermarkets are the biggest retailer of fuel in the UK, so do you think they’d sell you ste?)
If the additives err added by the likes of Shell "make no perceptible difference whatsoever", why do they do it? Particularly as it is likely to cost shell money to do it, which is passed on to the consumer making their fuel less competitive in the market place. The big brands do add some additives, but we’re talking 0.001% and certainly not enough to make any noticeable difference whatsoever.
It’s a commonly pedalled myth that supermarket fuel is of a lesser quality, but scientifically they’re effectively identical
(Supermarkets are the biggest retailer of fuel in the UK, so do you think they’d sell you s
te?)
We get bulk derv delivered at work into our bowser every week and the tanker guy told me that it's the same stuff which goes to the supermarkets and wouldn't advise using it in cars - although I'm not sure how much he really knows or is just making assumptions. I've taken samples of it in the past and left over time to look for any separation or water etc but it was fine.
However, we do go through a lot of filters on the bowser, which is only a few years old, and I've just been told today that they have observed a large increase in biomass being used in diesel (sounded like it was being done unofficially). I don't know how good or bad this is but it's effected the filter stock and they've ran out.
My view (and perhaps I am being conned) is that it's the additives I want in order to keep my engine clean and working efficiently so that hopefully there's less soot and therefore a healthier DPF. I also try to only use very busy BP garages and avoid quiet ones and I also never fill up whilst the delivery truck is there.
However, we do go through a lot of filters on the bowser, which is only a few years old, and I've just been told today that they have observed a large increase in biomass being used in diesel (sounded like it was being done unofficially). I don't know how good or bad this is but it's effected the filter stock and they've ran out.
My view (and perhaps I am being conned) is that it's the additives I want in order to keep my engine clean and working efficiently so that hopefully there's less soot and therefore a healthier DPF. I also try to only use very busy BP garages and avoid quiet ones and I also never fill up whilst the delivery truck is there.
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