Year of Engine / Oil Type

[Paul L]

I have a 50HP Mercury, serial # 2951989<br />What year is this motor?<br />I also would like to know what type of Gear Box oil it takes!? Thank you!

 

[boatmotor]

Re: Year of Engine / Oil Type

Hi Paul Believe your motor is a 1970.<br />Any Mercury should be able to tell you <br />that. Regards Tom

 

[fone_man]

Re: Year of Engine / Oil Type

Model: 500 <br /><br />HP: 50<br /><br />BEG SER: 2736807 <br /><br />END SER: 3008818 <br /><br />YEAR: 1970<br /><br />

 

[Paul L]

Re: Year of Engine / Oil Type

Anyone know what Gear BOX Oil to use!? Thanks guys for the motor year!

 

[Paul L]

Re: Year of Engine / Oil Type

Please help me answer my question<br />I would like to know the GEAR BOX type of OIL to use on my 1970 50HP Mercury Motor, Series 500

 

[BayStLouis]

Re: Year of Engine / Oil Type

Paul: I believe that the gearcase lube used in your motor is the Quicksilver "Premium Blend", but I doubt that the Quicksilver "High Performance" lube would hurt it. If the Mercury brand-name lube is not available near you, check the local Wal-Mart sporting goods department. They usually have a "generic" outboard gearcase lube. Check the label, if often will state which manufacturers' specifications it meets.<br /><br />I believe that there are anti-foaming agents mixed in, so ordinary heavy gear oil (75W-90W?) is not as desireable. Better than nothing, though!