Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: Knock sensor

Posted by mavenmatt on 06/07/10 - 6:46 PM
#1

Does anyone know if the 2006 + Merc 115's 4S have have a knock sensor?? I'm trying to determine what octane fuel to use for max performance!!!

Posted by ioptfm on 06/07/10 - 7:42 PM
#2

I would think that you can contact a Merc dealer and he would give you that info

Posted by number9 on 06/07/10 - 10:25 PM
#3

No knock sensor, believe your motor manual says to use minimum of 87 and premium can also be used.

Posted by mavenmatt on 06/08/10 - 7:26 PM
#4

If there is no performance to be gained by using 87 +, why use it?? Does anyone one know compresion ratio on this engine???