High octane supermarket fuel

[densil]

Hi,

I was wondering what everyone thinks to high octane supermarket fuel. I can proudly say that nothing but V-Power has ever gone in to my Leon FR TFSI. However, I'd imagine that over the 50,000 miles that I have done, my wallet has taken a bit of a beating!

It appears that supermarket (namely Sainsburys) high octane seems to be sooooo much cheaper than V-Power. Is it a false economy to use supermarket high octane or is it worth a shot? I am guessing that supermarkets go through a lot of fuel so I expect that the high octane stuff will always be "fresh" which is good.

I am torn (yeah I need to get a life!) as to what to do. I have also got a remap that was tweaked whilst using V-Power but I guess supermarket fuel would still perform sufficiently for the remap to remain efficient?

Any thoughts?
Many thanks

 

[Sparkopolo]

I have used the Sainsburys High Octane before and it seems ok, didnt notice any difference in driving or how much petrol I used, I also noted that Sainsburys high Octane is only 97 Ron, where as V-Power is 99 Ron

 

[densil]

Yeah, just thinking is it diminishing returns in that 97 is enough over 95 whereas 99 is overkill? Furthermore, I would have thought that sainsburys would go through so much of the stuff that it would be so fresh that it would probably have the same RON as V-Power that has been sitting about a bit in a moderately busy Shell station.

 

[dukebox9reg]

shop at tescos, buy your weekly shop(50+ quid) get 5p off a ltr and buy there 99ron momentum

 

[ElasticTangent]

shop at tescos, buy your weekly shop(50+ quid) get 5p off a ltr and buy there 99ron momentum

+1 for Tesco

 

[Smee]

im on tesco momentum

 

[10man]

I'm on tesco momentum 99 too, Revo said not too but I've always used it, tho would probably use v-power if there was a shell garage near me,

 

[Nath.]

shop at tescos, buy your weekly shop(50+ quid) get 5p off a ltr and buy there 99ron momentum

Or buy the regular stuff and pocket the difference, Unless you are mapped for 99 octane you will need to have a magnifying glass on a dyno print out to see the actual difference.

 

[dukebox9reg]

I'm on tesco momentum 99 too, Revo said not too but I've always used it, tho would probably use v-power if there was a shell garage near me,

why not?

 

[J@mes W]

Or buy the regular stuff and pocket the difference, Unless you are mapped for 99 octane you will need to have a magnifying glass on a dyno print out to see the actual difference.

I read an EVO article a while ago where they tested all the fuel types on a Golf GTI (2.0) and it made a huge difference, as much as 13BHP between standard 95 and 98/99.

 

[dukebox9reg]

had a thing on 5th gear a while ago with 3 models of car, a low spec clio, golf gti and a scooby and ran on 95,ultimate and v-power(optimax when the programme was done i think)the clio showed naff all but the turbo cars did. Id post a link from youtube but my works computer wont let me onto youtube.

 

[Wimbledonian]

I've gotta say, I used to work for an oil company years ago, and there's really no such thing as 'Esso' petrol or 'Sainsbury's' petrol or anything. Economic sense means all local forecourts, whatever brand, will buy their fuel from the nearest oil refinery. That refinery will have a number of different products, and maybe they'll add a few extra ingredients for a large customer like Shell, but if they sell a standard 95 RON unleaded then all garages in their distribution area will get that as their standard fill.

I'm amazed how people talk about petrol by brand, when it's produced by the consortium who operate the oilfield, sold to a refinery owned by another consortium, and then sold again to the firm operating the forecourt as if it were their product.

Like everything else , it's 99.9% marketing.

 

[M6TT F]

i tend to use standard shell stuff in my tfsi as I cant warrant the extra cost of the premium stuff, and I have a shell miles card... might try a tank of the good stuff to see if i notice any difference?

 

[FR_Flavoured]

To get the full "effects" of trying a different forecourt fuel, you'd need to fill the car up at least Twice, to "flush out" the tank of 'old' fuel from the original place you've been going to (if you refuel once the tank is close to empty).

I've always stated that I find Shell performance fuels to be best for performance (both petrol and diesel cars Ive owned) over other forecourts. I did also try BP for a while, and while my car didnt feel as "rapid", I was actually managing to get more miles out of a tank instead (consistently).

Also long term, over a few years, the additives found in the branded petrol stations are supposed to keep your engine internals in a better condition that a regular supermarket fuel ? (hence another reason I'd perfer using Shell ............ or BP.

 

[FR_Flavoured]

A good example of the above was my test drive of my current TDi FR...

During the test drive, the car picked up very well, and while I obviously didnt really put my foot down (with the sales guy sat next to me) I could feel the car was responsive through the gears.

Once buying the car, the salesman let me fill up at a Texaco garage right next door, as a good will gesture, to get home. I drove around for about a week and the car just felt dead, wallowed alot through the gears, like a different car! I even phoned the dealer and explained my concerns over the car and for their guidance.....

About a week later, I put a full tank of Shell V-Power in, and INSTANTLY the car felt alive again, and had the performance of the test drive! All very strange, but the only change was switching to the 'peformance' higher RON fuel.

 

[dazjb69]

Since I got remapped using v-power, I've used 99 Ron either v-power or Tesco momentum and not noticed a difference between the two. During the winter I ran on regular stuff, mainly because you can't get the power down and it did no harm the car still ran smoothly.

 

[GrahamFR]

To get the full "effects" of trying a different forecourt fuel, you'd need to fill the car up at least Twice, to "flush out" the tank of 'old' fuel from the original place you've been going to (if you refuel once the tank is close to empty).

Something to do with the ECU knowing that the fuel is of a different grade, giving it time to realise, and adjusting its settings to suit.

I've always stated that I find Shell performance fuels to be best for performance (both petrol and diesel cars Ive owned) over other forecourts. I did also try BP for a while, and while my car didnt feel as "rapid", I was actually managing to get more miles out of a tank instead (consistently).

Agreed.

 

[dukebox9reg]

here the fifth gear i was on about with dyno runs on the different fuels

http://www.youtube.com/watch?v=gQghB4asSnI

 

[GrahamFR]

i think this says it all:

http://www.revotechnik.com/index.php?mod=show_news&id_nws=30

 

[10man]

why not?

Ben saw a reciept in my car n said not too, apparently during testing it wasn't very good, like I said I've not notice any issues n still use it....