Anyone heard rumors that V power isn't the octane rating it says it is Mechanic I chat to recently told me it is 95 with addatives. Hope not or that is bad news
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Shell V power nitro, con
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It's not flexible, it must meet what they claim it will. Tesco's 99ron fuel is normal 95 with extra Ethanol added, or at least it used to be.sigpic
1991 Audi S2 3B - 2.5 Stroker engine
1997 A6 2.5TDi quattro avant - C4
1976 RD250E / 350LC cafe racer
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In the Netherlands Shell V-Power has octane number of 97.
It's overpriced compared to budget tanking stations Euro98 anyway.
And the octane rating is the fuel's resistance to self ignition due to pressure and temperature if I'm not mistaken. So it's not so much about the exact chemical composition.5 cilinder addict:
1995 UrS6, 2.2 turbo, daily driver, EFI coilkit, custom exhaust.
1993 S2, 2.2 turbo, ABY, long term project.
2006 Ford Fiesta 1.4 TDCI. Because reasons.
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Octane rating is something relevant. In earlier day fuel octane rating of lets say 95 would behave in a prototype engine as a chemical pure solution of 95 octanes. That means that the fuel can be benzine with 90 octane ration and added ethanol (I think in the EU till 5% they are not obliged to mention it) to rise the anti detonation properties of the fuel bring it to the knock resistance of 95 octane pure fuel.
Don t know if what I write makes sense to you but that's the story.Go Holset or Go RS4
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I use both, can't tell any difference. V Power is officially 98RON, Tesco is 99RON so it 'should' be better. Not sure what other additive Shell throw in there though.sigpic
1991 Audi S2 3B - 2.5 Stroker engine
1997 A6 2.5TDi quattro avant - C4
1976 RD250E / 350LC cafe racer
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The biggest difference I believe is how fresh the fuel is - apparently the additives will degrade fairly quickly so the fuel is better when fresh, not after 3 weeks in the forecourt tank.Panthero Coupé quattro 20vt
Indigo ABY coupé
Imola B6 S4 Avant
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Originally posted by Rikki Kitto View PostWho's using Tesco then at 99, my car isn't happy with normal fuel so I've always used V power anyhoo just felt a bit ripped off when he told me
This process starts at the refinery. The base product has an initial octane rating and additives are blended in to get the fuel to meet market requirements. There are often further additions made at point of sale, such as ethanol. At least Shell fuels have no ethanol so you get a consistent blend.Find me on Instagram @pry4sno
2010 Golf Sportwagen TDI /// #farmenwagen
2002 Dodge Ram 2500 24v Cummins 4x4
1992 80q 20v /// Eventual AAN'd Winter Sled
1990 Cq /// Project: Because Racecar
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