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[Taxi_Driver]

I saw a few months back a Tesco tanker on a Shell forecourt......dunno what that means....Shell buying from tesco's??  

I usually buy Shell unleaded cheapest.......bout £20 every couple of months   as the Shell garage is next to where i get my lpg......and that only comes in one variety.....but strangely does vary.....from make to make  :-?

[Admin]

Not sure about it here but I noticed the Shell Vpower stuff is 100 ron on the continent.

Oh and as far as I am aware, most supermarket petrol is supplied by Mobil.

[STMO123]

Slightly off-thread but while we're on the subject (loosely) has anyone got any views on petrol/oil additives? Good or not good?

[omegaV6CD]

Slightly off-thread but while we're on the subject (loosely) has anyone got any views on petrol/oil additives? Good or not good?

During an IMechE lecture from castrol lubricants i remember that the guy was saying about a case where the fuel additive would react with the engine oil neutralizing the detergent oil additives and result in sludge in the oil. Make your own assumptions. I use redex once a year.

[Timbuk]

I've been using V power since last week and to me it does seem better, I even went hunting for a Shell garage tonight in Coventry before i came home :-?

[MikeDundee]

I used BP ultimate in the past, currently running on standrad BP unleaded, there is a difference, and it smainly in the price 96.7 compared to 99.8 for BP ULTIMATE. So when you are nearly empty wahts the difference £1.80 @ 60 litres joking aside I can drive from peckham london to Dundee scotalnd on a full tank driving between 80 to 110 mph plus when motorway traffic permits, thats around 470 miles.

[Timbuk]

there is a difference, and it smainly in the price 96.7 compared to 99.8 for BP ULTIMATE.  

Thats just reminded me why i live where i do, 83.9 for normal unleaded, 88.9 for full fat

[Markjay]

In theory performance should benefit from high-octane fuel, because the ECU will advance the ignition until the knock sensor starts complaining – so high-octane fuel will allow ford more advanced ignition hence more power.

I used any-ole’-unleaded petrol for the car’s first 30k, but always added Redex to each thankful.

Last 15k I was using Bt Ultimate exclusively, and reduced the Redex to once every four tanks.

In between I was also using Shell Optimax for a few tankfulls.

In spite of the theory, I saw no noticeable improvement in performance or mpg.

From my point of view what is important about so called Super-Fuels, is that they contain detergents. I have seen heads come off engines that were used with additives, and you won’t believe how shiny the valves are compared to the black sooty affairs on other engines. I can only imagine what the injectors look like.

So for me BT Ultimate and Shell Optimax (or the new what’s-its-name) do the job, as do Redex/STP/D-Tox/Forte etc. Keep in clean!

[Timbuk]

So for me BT Ultimate and Shell Optimax (or the new what’s-its-name) do the job, as do Redex/STP/D-Tox/Forte etc. Keep in clean!

V- power

[Markjay]

Incidentally, my local Tesco is being re-fuelled by Esso tankers. So I guess Tesco have regional agreements with different oil companies….

You could of course argue that the petrol provided to Tesco/Sainsburys/Morissons is formulated to order, and may not be same as what Esso/Shell etc sell to the general public.

Tesco 99 octane must be that, because it is not generally available outside Tesco, so if the supermarkets can order ‘better’ fuels from the oil companies, they could also order lesser fuels…

Who knows…  

[Markjay]

So for me BT Ultimate and Shell Optimax (or the new what’s-its-name) do the job, as do Redex/STP/D-Tox/Forte etc. Keep in clean!

V- power

Thanks... The route from home to work has three BP stations, but no Shells... so I am on the BP stuff, but if I was living near a Shell garage I would also go for the V-power thingy.

[Markjay]

(I can't believe it.. a fuel thread... yeepee am I having fun)

[TheBoy]

there is a difference, and it smainly in the price 96.7 compared to 99.8 for BP ULTIMATE.  

Thats just reminded me why i live where i do, 83.9 for normal unleaded, 88.9 for full fat

I'm glad I'm a country boy as well.... 84.9 for low fat unleaded in MK...

[Martin_1962]

I think TD and me like paying in the low 40s

[markrl]

Pretty much all of the big brand petrol retailers use each others petrol it simply comes from the nearest refinery for obvious economic reasons. Additives are then added afterwards by the individual brands or even the Filling Station site themselves.
The extent of this “sleight of hand” came to light following the “New Formula” Shell fiasco of some years ago when the fuel started causing serious damage to some engine valves (I think Vauxhall were one of the manufacturers particularly effected) resulting in lots of manufacturers having warranty claims that were eventually traced to bad fuel. Shells new wonder fuel wasn’t working and in the resultant uproar they eventually had to disclose that the “new formula” part was simply an additive added to the petrol by the individual site retailers who had been not terribly conscientious in the quantities they added. The result was engine valve damage for an awful lot of cars. In the Parliamentary select committee enquiry following the fuel protest of 2000 into fuel price rigging by the big petrol companies the practice of sharing each others petrol from the nearest refinery once again was disclosed as a practice for reasons of distribution economy. It can therefore be of no great surprise to see the big branded fuel tankers delivering to their apparent rivals filling stations on occasion.