Bimmerfest - BMW Forums - View Single Post - Octane Boosters
Thread: Octane Boosters
View Single Post
Old 10-05-2012, 09:02 AM
Officially Welcomed to the 'Fest
Location: Singapore
Join Date: Jan 2010
Posts: 766
Mein Auto: BMW, Mercedes, Ford
Originally Posted by Bönz View Post
roadsta is absolutly correct. Do not put any of this crap in your tank. Modern fuels don't need any help and even if there was a way to increase octane, our engines are tuned for max performance at the rated octane. The computer will not crank up the boost nor advance the spark to take advantage of the higher octane.

These engines (sixes and eights) have direct injection. This is a senstive, high pressure fuel delivery system with VERY expensive injectors the squirt atomized fuel directly into the combustion chamber nearly 60 times per second at redline. Anything that changes the fuel's chemistry, viscosity or simply isn't gasoline suspended in solution is a recipie for disaster. Check out the old test from 5th Gear below.

thanks for the video, so much for this rubbish octane boosters.
2012 BMW 740i
2011 Mercedes E250
2007 Lamborghini LP670-4 SV
Reply With Quote