1991 Johnson/Evinrude Models "EI" 40 thru 55 Service Manual, Page 28Get this manual

1991 Johnson/Evinrude Models "EI" 40 thru 55 Service Manual, Page 28

Fuel Requirements
Minimum Octane Models Recommendations (R+M)2 "AKI" "RON"

40RS, 45, 55 40,48,50

See fuel classifications below See fuel classifications below