Actually they can, there is no law against selling a car that cannot run 95 ron fuel, Honda sell the S2000 which is 98 ron only, it cannot run on 95 ron, and as super is available to like 95% of the population, its not an issue (and octane booster is freely available from your local car parts store )

Tony

 

Most "super unleaded" sold in the uk is only 97ron.

 

To most people(apart from anoraks on scoobynet) a car is a car and the cheapest fuel will be chucked in regardless. So if the engines couldn't take it there would be broken-down cars at the side of every road in the uk.

 

as a very last resort I'd say along the same lines as everyone else, you can use it in the event of when sul isnt available. Personally having lost a 2.5 engine to det due to some **** of a fuel station who thinks its wise to flog std 95 out of the v-power tanks I wouldnt ever use it, I always carry a bottle of octane booster in the event I cant get what I want.

 

Well from new, the owners normally put in what fuel is recommended, when the car becomes a chav shed you may find that people chuck the cheapest supermarket fuel in there possible and then wonder why it goes bang, hence you get lots of JDM cars blowing engines and people then breaking them due to not being able to afford the repair bill... shame as if they would have put super unleaded in in the first place it probably would have been ok

One of the reasons you see quite a few P1's with engine failures is bad mods and bad fuel, that car has a 100 ron fuel map as standard with broquets to increase the octane rating of the super unleaded fuel to make it up to 100 ron (another car with a warning from Subaru UK to run only 97+ ron fuel)

Tony

 

A work colleague i know used 95 ron for 60,000 miles in his scoob and i kept saying he would have trouble but he never did an he gave it some welly too. I think so many people do exhaust, induction mods without remaps then combine that with 95 ron is asking for trouble

 

Depends on the car, wrx's will run quite happily on 95 ron as that is what they are mapped for, STI's will det, you can even hear it, give me any STI and put 95 ron in it and ill show you what det sounds like

Tony

 

Tony the op is asking the question about new age uk sti's, not jdm

 

That is for new age UK STI's, there was a nice post back in 2002 when John Felstead test drove one of the first bugeyed type UK cars in the country and the dealer had put 95 ron in it, he could hear it det, and trust me, you can hear it.

The ecu is good and it can knock back the IAM so far, but its not a miracle worker unfortunately

Tony

PS, a P1 was a UK market car, shame it still had a JDM map

 

All this saying my car runs fine on 95 is wishful thinking. sure, it hasn't gone pop, but i bet in a straight drag (against the same car with 99 in it) the V powered car performs best.
Why spend on a performance car and feed it ****e?!

 

Not very often you see the mention of Broquets these days. I for one hadnt seen them for a long time and was supprised to see them in the fuel tank of my hatch from factory

 

No manufacturer is going to sell a car in the uk that isn't capable of running on 95 Ron. The superunleded blurb is just marketing to make you think your driving a high performance special.

 

Nope as Tony already stated the S2000 can not be run on 95.... says so on the fuel flap, in the book and the Honda dealer you buy it off tells you about 3 times before you drive it off the forecourt.

 

That blurb went out of the window years ago when super unleaded wasnt freely available, did you know that 205 GTI's (1.9 pre cat) are not suppose to be run on unleaded fuel?

Anyway, as Arron went through 3 MY02 STI type UK's, post 65 may be of some interest

https://www.scoobynet.com/157721-sti7-bang-3.html

Tony

 

That's your opinion of which your entitled but it's far from fact !

 

My wife will tell me not to drink too much tonight but she knows I will.

 

And know doubt you will pay the price for not doing as you were told.

 

Oh and just to re-iterate the op was asking the question of newage uk sti's.

 

Uk sti have to use 98ron or above or Serious engine damage may result. That's what it says in the handbook, inside the filler cap and every dealer, tuner and responsible ower says.

 

A box standard uk sti straight out of I'm dealer showroom will run hapily on 95 Ron, without disappearing in a mushroom cloud. Ask ps Lewis, he will confirm this.

 

At the end of the day it matters not what you or pslewis say. I obay what the handbook tells me not an annonomous internet user

 

Did you guess all that?

98RON is what we use in Europe.
The US uses AKI/PON
98RON = 93PON or 89MON.

gasoline is a worldwide term.

 

Not wanting to be pedantic and it has nothing really to do the the op question. The term Gasoline is not used in commonwealth countrys where petrol or petrolium spirit is used

 

And you said

So I was just showing you that you were completely wrong. Educating you if you like

 

Sorry I didn't realize you currently drive a newage uk sti and a honda

 

Have owned both actually so what exactly is your point?

 

This is why I always prefer to buy a fresh import.My type r still had half a tank when it arrived,so I topped up with v power and it will never see any other fuel.
The Honda thing I think is across all the type r's as well.My mates integra handbook says super only.


Danny.

 

I'm sure the fuel cap says 98 RON and above only on my hawk. It's only ever had V power in any case.

Quite why someone would buy a performance and then scrimp on the petrol (unless it was an emergency scenario) I don't know! If you don't want to put the good stuff in it, then just get a run around!

 

Read through most of this thread but I think its time I say what I need to and from experience. I had a UK classic. Was told it was always run on high octane. I started doing a serious amount of miles and chucked in anything really from supermarket fuel to high octane. WIth all the driving I noticed the supermarket fuel just didin't cut it but when I went back to using the proper stuff the damage had been done and the engine was just giving up.

 

no i didnt guess all that,did some searches on various fuel sites etc.uk cars can run normal unleaded as they are mapped for it...but that doesnt mean its the best thing to do.as far as i am aware its only the sti that has to have higher ron fuel.