Subject:	Performance booster
Question:	i want to know if the octane performance booster would make any difference for the car (Mitsubishi Carisma) or not...
Answer:	Omar, Short answer, no. Higher octane does not increase performance. Most cars do not need high octane fuel. Unless you have a car that has a turbocharger, or other high performance engine (like a Corvette), you should just use regular octane gasoline. Your owners manual will list the recommend octane rated gasoline you should be using. Good luck!