Octane booster any good? Car is 330ci

[daveco]

As per title, is this stuff any good? Any noticeable difference from those who've tried it?

[simoncarlo]

It'd it and it make no noticeable difference.

Unless it a turbo and tweaked it's a waste of money and time on modern cars.

[coltonbob]

As above, will make sod all difference! Your best bet is to use high RON fuel such as a good super unleaded or V-Power. The gain's provided by these are debateable too tho however.
I'm sure my 330ci's happier on 97+ RON fuel than it is on 95 RON, seem to get an extra 1 -2 mpg too!?

[Ash-GT]

I always run tesco 99 in my 330, bmw state in the owners handbook to run the car on 98 ron

[nottyash]

Will only be better if you map your car to suit the higher octane, otherwise NO

[nottyash]

simoncarlo said:

It'd it and it make no noticeable difference.

Unless it a turbo and tweaked it's a waste of money and time on modern cars.

Thats wrong its to do with the engine mapping/ timing and nothing to do with it being a turbo or not. However you can obviously get bigger gains from a turbo.

[Neomagic]

Ash-GT said:

I always run tesco 99 in my 330, bmw state in the owners handbook to run the car on 98 ron

You sure about that?

[Ash-GT]

Ash-GT said:
I always run tesco 99 in my 330, bmw state in the owners handbook to run the car on 98 ron

You sure about that?

yep i looked befor i said anything. think its on page 23 of the hand book.

[dave_s13]

My '98 540 says anything between 91-98 RON.

I used to feel a huge difference in my Saab 9-5 aero. I don't really think it has any real effect in a NA engine.

[ooral]

My 52 plate manual states 91 to 98 Ron.......

Seems to run great on 95 and 97....