Tesco 99 octane petrol

[Hawkers]

The fact of the matter is unless your car is exclusively tuned for 99/100 or race fuel. Then using 95 etc won't matter as the ECU will just compensate and as my manual states I can use 95 RON with a 'slight performance loss'

 

[sportsilva]

I do feel let's call it 10% less on 95...call me crazy...

 

[andycupra]

It's funny that people will try rip you or take the c,unit out you on the net, people can't just leave things, you have said what you needed to say so why go on, this is how people start falling out over stupid things like this, grow up mate act your age.

got to love to irony of this post!

 

[andycupra]

ok so just to summarise some posts:

Well think yyou need to go read up about it or ask someone that really knows there's stuff, like AMD Tunning, even they said if you have no map and no decat then v power will eventually feck your car.....

(personally id not take any notice of anyone at AMD, my experience of them is a long way from complimentary).

Hi grade fuel isn't for every car on the road, the additives they put in the fuel does destroy you car over time, and who fecking ask you anyway. It's funny when people think they know everything

Any mot tester that does the emissions will tell you this....
....if you put it in once a month you see the difference.

The End lol

who even asked you to jump on this thread anyway you don't belong hear and yes I do no the difference in fuel types

It's funny that people will try rip you or take the c,unit out you on the net, people can't just leave things, you have said what you needed to say so why go on, this is how people start falling out over stupid things like this, grow up mate act your age.

Sorry lads got it the wrong way around.....if ur car is high octane only then putting u
Standerd fuel in ur car will f,uck it, even that said, using V Power in ur car is good if you want empty pockets, like I said before I use it once a month, wouldn't waist my money, if I had a top end sports car then yeh defo use it, but I haven't.

FAIL

 

[Bigjohn84]

Yeh as you told me before, we had a nice chat a while back if you remember about our cars and what AMD done to you, I thought you were alright when we had that chat but now I think ur a c,unt,

 

[andycupra]

for my input:

higher octane fuels have better resistance to pre-ignition.
Higher compression/turbo engines will have higher temperature in the combustion chamber. Therefore resistance to pre-ignition is very important. If ignition takes place before the piston have achieved full compression stroke then its pushing against the ignited fuel which is one way to destroy your engine.

therefore for leon cupras higher octane fuel is a good thing.
however its also not mandatory as the 1.8T has knock sensors and has an adaptive curve so it can adjust to fuels over time.
Sticking to an octane rating consistently is probably going to be the most benefitial way to go, randomly changing octanes will mean the ECU is always chasing the optimum set up and ultimately will mean you wont see the benefit.

Ps I understand the 1.8T has a compression of 9.5/1 but the K04 engines such as BAM have a slightly lower compression ration of 9/1 presumably so the output of the turbo is taken into the overall compression.

Also, there is RON, MON and AKI measurements, - Europe has a simplier calculation than the US, so the rating provided in Europe v the US are not directly comparable. 95/97 in Europe is rated around 91 in the US as US takes into account the anti-knock capabilitiy whereas the European rating does not.
explanation here on youtube: https://www.youtube.com/watch?v=zf-OYXlhJis

so one thing this does bring up is that there are two things that you may want higher octane fuel for, - increased compression or advanced timing. with many remapped cars have timing adjusted and higher boost. so in theory higher octane can provide better results/the remap can take advantage of this.
however the simplistic measurement of RON in Europe means that two fuels with the same octane rating might not be the same depending on how they achieve that RON rating. (one may be better for advanced timing for example and would have a better RON rating in the US but no different in Europe).

 

[Bigjohn84]

Heard it all no need to go back to what's already been said, your like Ben no2

 

[Dan FR]

Guys there's no need to go on. He made a mistake, and then owned up to it and apologised.

Everybody has different levels of knowledge and experience, we all started somewhere. There's no need to ridicule someone because they misinterpreted or misunderstood something they were told. The only reason I piped up was to explain and educate. My first few posts were meant in jest, although they may not have come across this way.

We all now know that high octane fuels are better than standard supermarket fuels so let's just leave it there

 

[Alexis27]

These were the rolling road figures for a 197hp Golf GTi Mk V (2 litre turbo) on three RON types:

VPower 99 RON: 197 hp
BP 97 RON: 194hp
Tesco 95 RON: 192hp

So a 222hp Cupra R would probably be 222 / 218 / 215 ish.

You'd actually be paying a premium to BP to lose 3-4 horsepower, no matter how many 'hungry piranhas' are in it to clean your engine.

By the way, the cleaning additives in V Power (and the others presumably) take 3000 miles to do their job, so it's no good using it occasionally for cleaning purposes.

 

[kazand]

Guys there's no need to go on. He made a mistake, and then owned up to it and apologised.

Everybody has different levels of knowledge and experience, we all started somewhere. There's no need to ridicule someone because they misinterpreted or misunderstood something they were told. The only reason I piped up was to explain and educate. My first few posts were meant in jest, although they may not have come across this way.

We all now know that high octane fuels are better than standard supermarket fuels so let's just leave it there

Well put. End of day it's personal choice too, and experience. Your car, Your money, your choice. Oh, and clubcard points , which at 20k a year in Leon an 45-50k in work motor all adds up

 

[Bigjohn84]

When i use it once a month I feel it's clean the injectors out straight away but then she's just like normal again, and for those HP figers anything under 5bhp your not gonna feel it, and if you wanna argue about that I'll post a video lmao

 

[Dan FR]

When i use it once a month I feel it's clean the injectors out straight away but then she's just like normal again, and for those HP figers anything under 5bhp your not gonna feel it, and if you wanna argue about that I'll post a video lmao

Without trying to cause an argument, could it not be that the 'clean injectors' feeling is actually the fact that the car performs better on the fuel? Any cleaning effects truly are a long term thing and will not make a difference straight away.

The performance figures mentioned are for a standard car, the difference on even a stage 1 mapped car will be much bigger again. On the Mk2 K04 cars, I've read that the difference in power on a Stage 1 tune can be as much as 30hp if not more (Circa 270hp instead of 300hp) - which you certainly would feel.

Personal opinion on whether you think it's worth putting is the car is exactly that.... your own personal opinion. The fact is that the fuel DOES make a difference to both peak power and peak torque, and headline numbers mean very little, but the gain over the whole rpm range is much more telling.

 

[Bigjohn84]

Lol prob mate but then it just feels like she was before the fuel went in a few days later. Like when I stick Wayne's injector cleaner in, that stuff if amazing, I stick that in the car and feel that work instantly, I don't no why I stick it in the car as I've had the injectors out been cleaned and had new seals, but Wayne's always makes that difference

 

[bigstuff]

lcr

the mk1 lcr has a 5 wire wideband lamda sensor and works a treat. boost leaks are ur enemy.