Regular 87 octane should be sufficient
55 hp.
25 horse power.
motor will not run completely the correct way. motor my not be as strong any more
70 horse 1985 mercury outboard
For a 1996 Mercury boat motor, it's generally recommended to use regular unleaded gasoline with an octane rating of 87. However, if the engine is high-performance or shows signs of knocking, you may consider using mid-grade fuel with an octane rating of 89. Always consult the owner's manual for specific recommendations tailored to your motor model.
The 2000 model, Mercury 25 hp outboard, requires a minimum octane 89 rated, unleaded fuel, however, with the quality of gasoline being what is presently, it would not hurt to run the higher octane fuels.
It depends on what type of RV you have. Some motor homes will take diesel, while some others take regular unleaded fuel.
A Mercury 40 hp outboard motor typically requires a minimum of 87 octane fuel, which is regular unleaded gasoline. For optimal performance and to prevent knocking, using fuel with an octane rating of 89 or higher is often recommended, especially under heavy loads or in warmer temperatures. Always refer to the owner's manual for specific fuel recommendations for your model.
A 35 hp Mercury outboard, serial number OC144498, would be a 1990 tear model.
Unleaded motor spirit
Unfortunately to find out the year of a Mercury boat motor one needs not only the serial number, but also the horse power rating. This allows it to be narrowed down to a specific year.
Its heavy man , I mean really heavy