Mercury Mariner 200, 225 Optimax Outboards Service Manual, 90-855348, Page 208Get this manual

Mercury Mariner 200, 225 Optimax Outboards Service Manual, 90-855348, Page 208

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STRATIFIED VS HOMOGENIZED CHARGE DFI engines use stratified charge inside the combustion chamber to aid in reducing emissionsAll other models use homogenized chargeThe difference between the two is:

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