1996 Johnson Evinrude "ED" 40 thru 55 2-Cylinder Service Repair Manual, P/N 507124, Page 65Get this manual
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Fuel Requirements Minimum Octane Models 40RW, 40RP, 45, 55 40RS,40,48,50 Recommendations See fuel classifications below See fuel classifications below (R+M)2 "AKI" 67 87 "RON" 69 90
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