marklemac

Nice one Nick. I wonder if any Tesco's in the Southampton area have it.

pslewis

Sadly thats what kills these engines - why not just buy the car that you are trying to make your Scooby into?? Just curious??

Pete

halowrx

Fail to understand then, I don't really care to be honest, im glad your able to make such observations - how clever you are.

However I do agree on one point that mucking about with the maps is a recipe for problems, unless of course you fit a knocklink to monitor the results.

If you do a search you will find loads of info about det causing long term problems. Therefore knocklink can alert you to the fact that in fact you are beginning to slowly damage your engine.

Time therefore to correct the problem and use the correct grade of fuel.

Im glad tesco is starting to roll this out, most of the shell stations up here have closed.

pslewis

I remain amazed at why someone would want to modify a very reliable car to give it an unreliability only previously seen in TVRs, Alfas and Rovers!!

Buy the car you want, not a car you don't want and then try and make it the car you should have bought in the first place!!

All IMHO of course

Pete

Turbotits

iTrader: (2)

Thats the whole point! After modifying i do have the car i want.I wanted a impreza with around 350horses.Guess what cant buy one off the shelf. Yes i could have bought something else with that sort of power. But wanted a subaru impreza and nothing else.
And YES i do have a knocklink and different fuels show a great deal off different levels of det,Its also saved the engine from some dodgy optimax in the past.

Apple

Could it be that the Tesco stuff is Optimax by some tie-up between the companies like Sainsbury's SUL is apparently BP Ultimate? A way for Tesco to compete with Sainsbury?

It might be a rounding exercise done on the octane numbers if Optimax is something like 98.6 etc - it rounds up to 99 for the people that don't understand decimal points or think it says 986 from a distance (rocket fuel etc )

pslewis

FPMSL ............ it just gets better!!

KnockLink, KnockLink, I Need a KnockLink or my life is not complete ... oh, my god what happens if I get a bit of dodgy fuel?? a fly in it or something?? Maybe the wrong water in my washer bottle?? My engines going to BLOW!!!

Tears rolling down my face here ............ you daft bunch of muppets!!

Pete

pete P1

the only point id like to add to this is.basically all imprezas in this country are basically de tuned to suit eu emission laws.and by decatting my car and having it remapped .i dont so much feel that ive had the ecu tampered with, more like released the power which was origonally intended.... just my opinion anyway.. cheers pete.

6 pot

[QUOTE=pslewis]I remain amazed at why someone would want to modify a very reliable car to give it an unreliability only previously seen in TVRs, Alfas and Rovers!!

pmsl

Apple

Pete,

If we still rode donkeys (you can have the *** ), we'd argue which type of grass to feed them on so no change from then to now

pslewis

Sorry, all I can see here is Donkey ****!!

You lot would chop one leg off, make it 2 inches longer because you have been 'sold' the idea that it makes the donkey run faster - only to find out after a few steps that the crutch gets in the way and the leg has fallen off!!

Then you come on here and say that everyones donkeys legs will fall off unless you only move your donkeys tail in an anti-clockwise direction every morning!! And scare the crap out of those who are daft enough to take notice!!

Pete

micared

Knocklink on a standard car would probably give you warning of a deceased maf, as the mixture weakens, the more likely det will set in, so has some worth even then. Given that det is probably the single biggest killer of Impreza engines and all sorts of situations cause it, it's a cheap heads up at the money. A well Tek 3'd engine, mapped by one of the reputable well known tuners is probably safer than standard. There are clearly people posting on this thread who can't understand that, or who choose to belittle the idea 'cos they like the reaction it gets. Or who don't drive the car hard, and will therefore not encounter the problem at hand. If you drive your Impreza hard, whether standard or modified, a knocklink has to be worth the money for the peace of mind.

Adam M

micared, there is no point talking technicallogic and reason when ps lewis is around, the guy is a wind up merchant of the highest calibre.

pete, am sorry to say but engines die, especially subaru ones for no apparent reason.

You have(had) a warranty so you don't care. Perhaps if yours lets go you won't be so quick to cast dispersions on those who try to avoid it happening to them.

You still haven't explained why you think it is that the designers of your precious standard car saw fit to put in a standard water temperature gauge, and what about the oil pressure warning light?

They are thre to give peace of mind that you can spot a problem before it does damage.

Just because you are too stupid to consider problems that affect thousands of others doesn't give you the right to insult those wo have their own concerns, valid or not.

FB Tuning

iTrader: (30)

Anyway...Back on topic....

I specially went to Tesco's in Amersham tonight to sample the new 'delicacy' fuel to find that they haven't got any yet

Back to the SLoptimax garage then

micared

Hi Adam, preaching to the converted here, I'm on PSLs 'ignore list', 'cos he can't bear me doing to him what he does to everyone else. It appears that I must be even higher a calibre of wind up merchant than him, 'cos he gave up before I did.

It's clear to most that a knocklink is invaluable, even if it's just to help the uninitiated.....there were lots of threads in quick succession about people who had driven their car hard on the motorway for several miles, got stuck at the motorway exit for a few moments, and then, after the i/c had heatsoaked, caned it from the junction. Car goes bang, chalk another one up to det. Suspect a KL may have helped in that situation also.
As with the oil change thing, hopefully one of the cynics'll find out the hard way, and stop taking the ****.

Hammoc

Enuff of the bollox. Look at this thread for the facts.

http://bbs.scoobynet.co.uk/showthread.php?t=423423

MTR

Apple,
That is exactly what I was thinking.
Tesco don't manufacture petrol, so they must buy it from existing sources, like Shell, BP etc.

For interest I looked on the pump tonight whilst filling up with Optimax, and there was no indication of the RON rating for the fuel.
It was 88.9 pence per litre.

Cheers
MTR

mikeswrx02

What a joke! bags more power!!! ahahhahahhaaa
If u had tek3 and used optimax and now using tesco with just 1 ron higher u defo not going to notice much difference..... I guess it all in you mind!!!!

I tried it now for a few days now, dont feel anything different at all m8ty.

WRXtra power

Well if you didn't feel any difference then what's the problem. Tesco is cheaper and just as good, that should be all that matters!!!!!

As a new guy to this forum I am so happy to see a thread I started has got so much response but don't you guys think you need to calm down a bit. We all want the same thing, a cheap fuel that works. I tried it today and I did notice a difference, the car just ran smoother and that's all I want. Try it yourself, if you don't like it fine, go back to Optimax!! No one is forcing you to use anything. You all have brains so use them.
This forum is for advice, its not a Scooby Courtroom.... I have made my choice of fuel as its closer, feels better and its cheaper. I will lose no sleep over your preferred choice of fuel.
And on that note, I wish you all a goodnight.

unfeasablylargegonads

iTrader: (3)

LOL, hmmm sounds exceptionaly dodgy to me

WRXtra power

LOL Guess what? So does your user name, I'd go see a doctor if I were you. Sounds like you have caught some nasty S.T.D.



You remind me of the guy in that advert who wants a regular bulb, the other guy at the sales counter says "we have another bulb here on offer, it does the same thing but it lasts longer and its about the same price" He sticks with his regular bulb!

In the next scene he is in the kitchen trying to open a box of drawing pins and due to his stupidity he spills them on the floor all around his bare feet. Then guess what?

THE BULB BLOWS AND HE IS LEFT IN THE DARK!!!!

I know who’s shoes I would rather be in..........

davyboy

YES!

Never fails to amaze me how people get this excited about petrol - could be 20 pages.

I wonder how much increase in bhp a 1 octane increase would be? Not enough to notice would be my guess.

ScoobyAddict

Before we all get too excited, bear in mind the octane rating alone shouldn't be the only consideration.
It is also the high-quality detergents etc that go into Optimax for example that make it such an all-round superior fuel & for that reason we shall continue to use Optimax, certainly until we have at least found out a bit more about any new fuel!
(Plus the fact we live in the Midlands & couldn't get hold of the stuff at the mo anyway!)

WRXtra power

Well what sort of high-quality detergents etc go into Jap fuel then??
Stick a bit of Fairy liquid in, that should do it.

ScoobyAddict

U do that & we'll meet up in 5 yrs time & compare engines!

WRXtra power

someone needs a sense of humour...

ex-webby

This is interesting stuff!

Just to add something in to the mix here....

Going from what I know from my previous Cosworth life, the difference that the old 98 fuel (can we all remember that) made to the present 97 fuel once mapped for (don't for get that the old Cossie ECU's didnt self learn etc) made a huge difference. Normal Stage 3 conversions on 98 used to make around 350bhp whereas the remapped ones for 97 made about 330bhp.
I am not saying this is directly relevant pound for pound for todays fuel or cars, but it was common knowledge that changes in fuel (however much it seems to be considered as a small change by us mere mortals) can have a huge effect on cars.

So here's hoping that this starts the ball rolling with other higher rated fuels and we can all get some extra free BHP.

Regards,
Shaun.

WRXtra power

Webmaster Why can't everyone be this positive?

ex-webby

lol

Obviously I am highlighting the old 98 fuel, compared to what replaced it (the present 97) and the above was based on a certain conversion type for a specific engine..... so please lets not have people think I am quoting circa 20bhp difference for any car on todays fuel types!

Just to highlight that fuel can make a difference, however small number increases seem to be (even though the RON rating is only part of the fuel equation).

Regards,
Shaun.

jfrf

Got to say i recenty switched from 95 ron to super, as an experiment
Noticed f*k all difference, even economy is the same

So the talk about bags more torque does sound a bit strange.