United Plus Petrol In A Skyline

[SKYL1N]

United petrol stations have a performance petrol that contains ethanol but has a higher then 98 octane rating then most servo premiums.

Shell also has V-POWER racing which is 100 octane and contains 5% ethanol.

my question is is this octane petrol bad for a Non Turbo, skyline?

[ashneel]

you can put regular unleaded in non turbo skylines as far as i know so anything higher then 90ron cant see what the harm will be

[SKYL1N]

its not the octane rating im worried about i know about that.. its the ethanol content

[Julz89]

well i have heard that ethanol based fuels in the long run can rust fuel lines etc thats about it thou. Also another thing i have heard that if u use a much higher octane fuel then what the car was made for u can burn the valves??

[zonbie]

How would it go in a RB25DET ?

[KURAUN]

i have used united boost 98 ( with 5% ethanol) in my rb20det for the last 3 years i have owned my car and yet to have any problems with the fuel

it actually runs better than bp 98 ive noticed, bp gives it a rough idle and sorta rough drive through the rev range

however yet without a problem i will still use this in my car

[paulr33]

this has been covered to death

using higher octane fuel is fine

without a retune you wont get any gains other than it acting as a detonation killer

you wont gain any power without a retune

ie: putting 100ron in a stock GTST will give zero, unless you tune for it

but it will take away knocking if you do get some with normal 98 on your current setup

ethanol in a std car is fine it wont do any harm or melt your fuel lines etc

ive been using shell vpower racing 100ron for about 5 months (ish) now and its fine

i havent changed a single thing, std GTR pump, std lines, std injetors etc

[htial]

My car is stock and at the last RE Customs Dyno day I got close to 150kWs and I'm sure I had been using the United 98 for at least a few weeks leading up to that... ...I had a discount card that a mate had given me and the one in Springvale is right next to my office...

Since then, when I had my last service, I was back down to around 140kWs and I've been using Caltex 98... ...Moneys been a little tight with the cutback of hours at work and the cost of fuel... ...So it is shopping dockets for me at the moment...

I doubt the fuel is the only reason for the drop in power... ...but it could be a factor...

[Julz89]

so using a high octane fuel dosnt burn the valves regardless??

[R31Nismoid]

No... where did you hear that? Totally wrong

[Julz89]

i heard it at trade school from a trade school teacher like i asked whats the harm in using high octane fuel in my car (VL) and his like every no and den is ok but too much will burn the valves.

[SKYL1N]

more concerned about the ethanol then high octane.

[paulr33]

ethanol is fine

do you honestly think shell could sell it as a std available product to every day mum and dads if it melted fuel lines and caused your fuel pump to explode?

of course not, it would be the biggest law suit and class action in australia

[SS8_Gohan]

with a tune, is there much to be gained? or are we talking like 5rwkw

[~R33AzzA~]

with a tune, is there much to be gained? or are we talking like 5rwkw

From what I remember, a few years back HPI magazine had one of their cars re tuned for ethanol based fuel.

Again from what I remember, they got around 20kw gain and more torque. Does anyone else remember this?

If you get more power with a cheaper fuel, why not move to it?

[MP_R33]

Wont do anything in the short term if you only use it once or twice here and there, although in the long run it could rust fuel lines.

A mate of mine with a NA MK4 Supra has had the problem wouldn't recommend using it on a regular basis

[paulr33]

im sorry i disagree %400 with your comment

there is no way a std service station can sell a product that rusts your fuel line

[paulr33]

im sorry i disagree %400 with your comment

there is no way a std service station can sell a product that rusts your fuel line

[dezz]

They can if they say that they recommend it not be used in cars built pre 19XX....

[MP_R33]

well thats just your opinion..

it could not be souly responsible for it, there are other factors that may have obviously contributed. All i am saying is i dont believe its wise to be running this fuel consistently in a NA. Why not just run it on normal unleaded and you will have no drama's