How many people use regular unleaded , on my travels I've spotted a few Subaru owners filling up with it !

 

V power only, though both my cars are JDMs and even when I had my UK MY00 classic, she only ever got super.
The only cars that can run unleaded are UK turbo's too as they are mapped for 95 ron, all the rest need super and above (higher the better) otherwise you end up with blown engines due to det though good for the breakers as it keeps them in trade

Tony

 

I run sainsburys super 97.

 

Mine gets the standard Morissons Unleaded and seems no worse for it. My engine is a standard UK 2.5L model. I did 30K on unleaded and I've done another 10K on LPG and the engine runs just as it did the day I bought it.

I did run V power for a few months, there was a slight increase in power but nothing amazing.

 

not this again!
personally use both and have had several scoobies and done the same.
mine have all been uk spec but have never had any issues but im sure others will disagree

 

For the sake of a few more pence whats the point in sticking anything less than V-power or Tesco Momentum in your car, I certainly wouldn't want to buy a car that's been run on normal fuel

 

If the people who actually designed the car, (the manufacturers), state it must be run on 97 octane or above, then what does that make someone who totally disregards this simple instruction????

Whatever next? Someone using Castrol GTX mineral oil because they think their car will be ok with it?

 

And what if the people who actually designed the car (the manufacturers), state minimum ron 95?

 

Does anyone actually use sainsburys 97 super, doesnt seem to be many people & I dont want to damage my engine???

 

It does say 95 ron in my handbook as well but super in the fuel cap.

 

Fine, if it states 95 can be used, thats ok! It when it states 97 or above and you insist on using 95 because you know better than the engine designers themselves, thats when it's a problem.

 

My handbook says.
non turbo models.
all models except 2.0 liter sohc 95 octane or higher

2.0 liter sohc 90 octane or higher

WRX 95 octane or higher

WRX-STI 98 octane or higher.

So if you have an STI the only petrol i can think that's available in the uk is v-power or Tesco momentum 99.

The people who say i only felt a slight performance increase with v-power should ask themselves why. It's not that the fuel is giving you more power, its your ecu knock sensors detecting knock so turning your power down when using lower octane fuel.

 

I've got a WRX PPP and on the certificate it states your vehicle can be run on RON 95 premium unleaded, but for full performance they recommend RON 97 super unleaded.

So how i see that is in an emergency say like on a long trip your low on fuel and the only petrol station about does 95 Ron only then you can use it, but don't expect the full performance or figures they state in their documentation.

 

@blobeyedrex so do you use 97 ron, ie sainsburys super or do you go 99 ron?

Cheers.

 

I've been using V-power but since the local stations have put the price up to 1.51 per litre I'm now using Ron97 Super from both sainsbury and BP, performance wise seems the same as it was on v-power.

I do Know people who have both new and old classics running on v-power stating when stripping the engine down both the valves and heads appear to be cleaner on v-power but then it depends what brand/octance rating they were running on before anyway

 

Also i signed up to petrolprices.com, and i get a weekly email for my area - sainsbury come out cheapest of all the fuel suppliers at £1.35 per litre compared to max shell at £1.51 (for super)

 

Yes - I only use Sainsburys

We don't get much of a choice over in N.Ireland, and certainly nothing with a RON >97

 

Thanks for the info, v-power is extortionate around here so sainsburys looks like a good safe option!!!

 

Oh God not this again.

UK cars (non STI) can run 95, says so in the handbook and on the fuel cap if you know how to read and not turn words round.

STI's and JDM and PPP'd cars - 98 or above.

Simples

 

I saw a guy at my local esso filling up a bugeye sti with 95.

 

Probably be crying how weak Subaru piston's are in a year.

 

I've had my classic wrx sti for 1 n half months now and only ever use shell vpower.. Only 99 octane fuel in my city so I make sure I always fuel from shell