Octane Boosters

[hicas_posse]

Guys, just trying to get a general opinion-do you guys use octane boosters or have you guys got your skylines tuned to run efficiently on optimax?

[scathing]

Buy the highest RON rated fuel you can, rather than buying the lower-spec stuff and octane boost it. Octane booster doesn't mix in to the petrol properly, and its only ever designed as a stopgap measure.

If you've tuned your street car to use fuel with a higher RON than what you can easy get at your local petrol stations, then I'd suggest re-evaluating your requirements or purpose of your vehicle.

[hicas_posse]

Buy the highest RON rated fuel you can, rather than buying the lower-spec stuff and octane boost it. Octane booster doesn't mix in to the petrol properly, and its only ever designed as a stopgap measure.

If you've tuned your street car to use fuel with a higher RON than what you can easy get at your local petrol stations, then I'd suggest re-evaluating your requirements or purpose of your vehicle.

hi,

what you say makes sense but in this case in australia,I think most skyliners are using Optimax and that's only 98ron.. I think it's 101 in japan(i could be wrong though). And as for the new fuel made by shell which has a bit of ethanol (but has high octane rating),i'm trying to see if it makes sense to safely use optimax + octane boosters.

what are your thoughts?

thanks

rob

[djr81]

If your car has a stock ECU it will run fine on 98 Octane. If you want to use an ethanol blend from what I understand the fuel density is different & you need a tune.

If you have an aftermarket ECU get the engine tuned to 98 Octane.

By way on illustration - when they sold the R32 GT-R's in Oz you could only buy 95 Octane...

[scathing]

what you say makes sense but in this case in australia,I think most skyliners are using Optimax and that's only 98ron.. I think it's 101 in japan(i could be wrong though).

Oh, a stock Skyline, or one without a programmable ECU. I hadn't considered that.

If the car's stock, then it should be adequate. 101RON would be top-of-the-line fuel; OEMs always design their cars for a wide range of conditions.

If its got a Mines' ECU or something that's tuned more aggressively but can't be retuned locally, I'd probably look at swapping the ECU and retuning instead. I don't like octane booster since there's no guarantee it mixes properly, so I'll avoid it where I can.

I don't think it was designed as a long term solution.

[Robo's]

If im going out for a fast cruise with the boys, i try the Nulon Pro octane boost which brings my knock levels down. This is on top of my 98 octane fuel. However, i prefer to fill it up on Optimax Extreme which is 100 octane and brings my knock down considerable.

[hicas_posse]

If im going out for a fast cruise with the boys, i try the Nulon Pro octane boost which brings my knock levels down. This is on top of my 98 octane fuel. However, i prefer to fill it up on Optimax Extreme which is 100 octane and brings my knock down considerable.

hang on... i thought with Optimax, your car shouldn't knock anymore?

[LatinR33]

I believe the stock ecu has two fuel maps one for the higher octane and one for the 98ron fuel. So yeh if you are running the standard ecu then you dont need octane booster.

[rb20inside]

a higher RON is just a higher resistance to preignition (knock).

tune your car to 98RON (Ultimate, Optimax, Vortex, Synegy) and add a octane booster if you want when you venture to the track or go for a fast cruise with the boys just as an added safety factor. otherwise yeah, "re-evaluate your requirements of your vehicle"

[hicas_posse]

a higher RON is just a higher resistance to preignition (knock).

tune your car to 98RON (Ultimate, Optimax, Vortex, Synegy) and add a octane booster if you want when you venture to the track or go for a fast cruise with the boys just as an added safety factor. otherwise yeah, "re-evaluate your requirements of your vehicle"

hi,

i'm in melbourne. A few months ago,i enquired and found that Caltex has yet to have 98 ron fuel in melbourne. Seems their Vortex are 95 or something. Has anything changed?

thanks

[R32_Matt]

dont know about melbourne but in canberra

caltex has sold vortex 98 for about a year now.

[sloutch]

Nah, in Melbourne the Vortex here is still 95RON. Not sure when will Caltex actually introduce their 98RON Vortex to melbourne.

Robo's, are you sure skylines can take Optimax Extreme? I believe they contain a certain amount of Ethanol in it.

[stolen_s15]

I used the NOS octane booster (race blend) once for sh!ts and giggles and i noticed better fuel economy. No more power though.

[silva33]

I have used Martini Octane boost, it was perfect!

Made the car very fuel efficient and brought knock levels right down..

Highly recommend it

[Mr Italy!]

Vortex and Vortex 98 are two different fuels.

Normal Vortex is 95RON, and as the name would suggest, Vortex 98 is 98RON.

[sloutch]

Guys any of you tried Wynn's Octane booster? It's a black bottle. It stinks IMO and it doesn't have much of a difference though. $20 a bottle!

[chris davey]

http://www.martiniracing.com.au/Documents/...tini%20Fuel.pdf

I have some but haven't used it yet

[LTHLRB]

used nos octane booster when i raced at calder, car ran perfect, didnt miss a beat. Had 3/4 tank of ultimate and a full bottle of nos in it. I think ill use the Sonoco race unleaded fuel next