Suzuki 2003-2007 DF60 DF70 Outboard Motors Service Manual, Page 284Get this manual
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DF60DF70 "K4" ('04) model 11- 3
Suzuki highly recommends that you use alcohol-free unleaded gasoline with minimum pump octane rating of 87 (R2M2 method) or 91 (Research method)However, bl