Quote Originally Posted by GeoFisher View Post
Go AHEAD and run fuel that needs MORE COMPRESSION to burn.........but before you do, go to bass boat central, and read all the posts about blowing motors UP by using mid or high grade fuel.

These motors are very SPECIFIC, with REALLY TIGHT Tollerances. Those are needed for the 06 California emissions rules.......

The higher octane fuel burns slower, hotter (in some instances), and can take as much as 15% more compression to burn effectively.....

BURN 87 Octane Gas, and use DFI Oil.............nuff said.

Later,

Geo

What about a Pro XS ?

i recently decided to start usinf dfi but not sure its best thing to do ...

3 dealerships told me three differant things and mercury never emailed me back yet .... although the manual says "mercury premium plus"

it just seems the dfi should be better

wish someone knew for sure heh