Octane Booster With 95Ron With 98 Tune?

[jeff390]

I have an F6 tuned to 321rwkw on 98RON gas.

Unfortunately the town I will be staying in for the near future only sells 95/96.

Can I use this fuel with an octane booster SAFELY to run my 98 tune, and which octane booster is the best?

Thanks folks - much prefer the power on the 98 tune but don't want to kill the Phoon

[ZAP]

If you are planning on being there a while (more than a few weeks) I would either get it tuned for 95RON. Octane booster is meant to increase the RON by 3-5 points, but fuel loses its octane the older it is.

If you are in a town who's servo only gets monthly deliveries, you could be adding booster to 91RON if the fuel is a month old.

The best booster I have found that is also priced fairly is the Nulon brand Octane Boost and Clean

[mattyb]

in relation to this... if I have my car on its 95ron tune, and I run iton 98, what benefits, if any does it have? Just a question as this topic came up last night at the pub.

[straughsberry]

Maybe if timing is on limits at any point in the tune (perhaps a hotter day etc) and knock is being picked up, it may help.

I was fishing in Portland earlier this year and was towing a small boat (about 700kg load maybe). On the trip home, the only servo with 98 had none left so I had to use octane booster. In 3rd and 4th if I accelerated too hard, I was getting a deadly sounding, deep ping like I'd never heard before.

Get a 95 tune for sure. At the very least, it will be a backup which you can revert to.

[mjadeb1984]

also in relation to this I have a 98 ron tune and filled up with united 100ron fuel yesterday and now my engine light is on and the car is a bit slow to start, is this the fuel or something to worry about?

[Xrfranjo]

Just to add worries, octane booster also eats the gap away at your plugs.......over a period of time of course

[jeff390]

This is all abit of a worry. I do have a 95 tune & despite looking close on paper (it makes 297rwkw) in everday use it's no where near the 98 tune. The 95 tune makes all it's power from about 4750rpm to 6000. The 98 tune on the other hand has massive mid range grunt. I don't want to be driving around everywhere @ 5000rpm, like most people 90% of the driving I do is between 2-4000rpm, and that's where I like the power (or torque really). So I'd really like to use the 98 tune I was just hoping to hear that octane boosters would turn my 95 into 98 & I'd have nothing to worry about. Unfortunately I don't think that's going to be the case....?

[gregor]

How much do you feel like gambling with your engine? You might get away with it, you might not.

[Xrfranjo]

have you considered LPG.........

[jeff390]

Thanks folks. Looks like I'II have to bite the bullet & run it on the 95 tune. That's going to be faily depressing having enjoyed all that mid-range grunt over the last few weeks but from what I've read I'm not about to trust booster to make up the difference between 95 & 98.

Cheers!