luvmyfz6 Posted October 1, 2007 Share Posted October 1, 2007 Hi there, I was wondering what octane fuel I should use in my 06 Yamaha FZ6. The owners manual says regular or 87 octane fuel. I was noticing that the compression ratio is 12:2:1 so would a higher octane fuel help the performance any? I live in CA USA, octanes are 87, 89, 91. Also does anyone recommend a certain brand of fuel? I usually go with Chevron. Link to comment Share on other sites More sharing options...
CCHOUSEKY Posted October 1, 2007 Share Posted October 1, 2007 I've got an '06 FZ6 and I've tried everything from 87 to 93. I do notice a difference in the two. When I put the 87 in, I noticed a knocking in the engine. Nothing too bad, but it still wasn't something I wanted all the time. Now I always use 93 octane (I live in Kentucky). I would say go with the highest grade you can find. The little bit of extra cost is worth the piece of mind. Link to comment Share on other sites More sharing options...
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