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Knock sensor
mavenmatt	#1  Posted on 06/07/10 - 6:46 PM
Member Posts: 7 Comments: 0 Joined: 05/25/10	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!!!
ioptfm	#2  Posted on 06/07/10 - 7:42 PM
Member Personal Page Posts: 1533 Comments: 3 Joined: 10/28/06	I would think that you can contact a Merc dealer and he would give you that info Tom 1979 Sport 15'
number9	#3  Posted on 06/07/10 - 10:25 PM
Member Posts: 210 Comments: 1 Joined: 03/13/08	No knock sensor, believe your motor manual says to use minimum of 87 and premium can also be used. Bill...On the Ogeechee 1984 Outrage 18...Yamaha T50...that's right, 50hp
mavenmatt	#4  Posted on 06/08/10 - 7:26 PM
Member Posts: 7 Comments: 0 Joined: 05/25/10	If there is no performance to be gained by using 87 +, why use it?? Does anyone one know compresion ratio on this engine???