oil mixing ?

[headhunter954]

on my 1973 evinrude do I need to use a marine grade 2stroke oil on can I use any 2 stroke oil also what is the mixing ratios thanks

 

[aclaimsman]

Marine oil is formulated for cooler running outboard motors. Non marine two cycle oils are formulated for hot running handheld equipment Mixing ratio is 50:1. I would also use a product called Sta Bil, as most gasoline these days have ethanol which will eat up rubber hoses. There are two kinds, obviously use the marine grade.

 

[rpena]

I have a 25hp Evinrude is the oil/fuel ratio also 50:1 ?

 

[aclaimsman]

50:1 for all Evinrude and Johnson's since 1964

 

[headhunter954]

thank you very much. also I notice when I have it in my 55gal drum thing i,ve been using to run it I seen the water got oily and there was like waste oil on the bottom after I drained it is this normal

 

[cajuncook1]

thank you very much. also I notice when I have it in my 55gal drum thing i,ve been using to run it I seen the water got oily and there was like waste oil on the bottom after I drained it is this normal

Yep, it is normal. It is unburned fuel and oil. You have more completed burning of fuel/oil when you are running your motor on your boat at higher rpms and wide open throttle.

 

[headhunter954]

cool thanks yall have help me out alot thanks to all of you

 

[aclaimsman]

thank you very much. also I notice when I have it in my 55gal drum thing i,ve been using to run it I seen the water got oily and there was like waste oil on the bottom after I drained it is this normal

Yep, it is normal. It is unburned fuel and oil. You have more completed burning of fuel/oil when you are running your motor on your boat at higher rpms and wide open throttle.

what he said!