Quote Originally Posted by aaronng View Post
Octane booster is BULLSHIT. Stay away from it. You can get deposits in your combustion chamber and in bad cases also kill the cat convertor. Octane booster costs so much for so little. A better alternative would be for you to fill up with 98 RON at the pump instead! Are you using 91 (regular), 95 (premium) or 98 RON (Vpower, Vortex98, Ultimate, Mobil 8000) at the moment?
I been using Vpower the whole time unless i dnt have the 4c docket I end up filling up the cheapes octane/premium that i drive pass, Like mobil 8000 or caltex vortex,

I havent tried either octane booster or stop leak,, i just saw these in the shop and they cost a fortune for a small bottle and i wonder are they effective bcoz the price for the size..

Btw i am using the mobil 2000 semi synthetic oil..gud or bad?