dogdogman

Which is the favoured choice of octane booster? Is there a big improvement in pull?
(I am running an STi 3)
Cheers for any advice!

chrisp

There seems to be two main contenders

Silkolene Pro Boost

and

Millers Octane Plus

I use millers octane + in my WRX RA, its a handed little 250ml bottle and does 50 litres of fuel and cost around £2.5 a bottle. It suppose to raise the octane rating by about approx. 2 RON ie. SUL to 99 or NUL to 97.

I have never use the pro boost stuff but I know its more expensive.

Mine seems to run fine on it, only done 2K miles though.

There are others like Wynns but be careful as some booster can destroy sensors or cats or both. The millers octane plus is cat friendly.

cheers

chrisp

[This message has been edited by chrisp (edited 07 April 2001).]

Dave Thornton

I have read on here that Silkolene Pro Boost causes cylinder 3 to run very hot.

I have also read that Millers Octane + only gives 0.5 RON more.

Sorry to be so negative. However, I sometimes use Millers with 95 for my STI 3.

dogdogman

Cheers guy's
I was wondering where you can get Millers for £2.50 as the only place i have seen it advertised priced it at £3.80 per bottle or £33 for a bulk buy of 10.
Once I have put the Millers in do I have to bother with the ECU reset or does it detect it the increase automatically?
Thanx again

Andy W

dogdogman

Cheers!

gaudy

I use millers CVL which gives gives you 100 octane with SUL. It`s given vast improvements to my 98 STI4.
You can only use this if you have removed the cat.