115 Tower oil question

[popknot]

Recently I have read several past posts about the benefits of Evinrude XD50 oil. One being less smoke. That sounded appealing so thought I might give it a try in my 1986 mercury 115hp tower. I went to Wally World and found 2 types of Evinrude oil neither of which was labeled XD50. The first was a blueish color, said mineral oil on it, wasn't a synthetic or blend, so I didnt think that was anything but just another dino oil. The second was goldish colored said it was a synthetic blend formula. Exceeded TC-W3 specs. And was pre-mix suitable. After some research I think what it is, is the Wally World version of the XD-100 oil. So my question is. Is it OK to use this oil in my engine at a 50:1 mix and would there be any benefit to it? Or should I just go back to Wally World and get some Quicksilver?

 

[quicktach]

Re: 115 Tower oil question

Usually not wise to mess around with different oils.....Quicksilver or a good quality outboard oil is a cheap investment. Make sure you stick with "outboard" oil.

 

[popknot]

Re: 115 Tower oil question

First of all thanks for the reply! This is Evinrude Johnson super premium 2 stroke outboard oil so I think it is a quality outboard oil. But I think it is the Walmart version of the XD100 which is actually a direct injection oil designed for the Etech motors to use at a 100:1 mix. From what I've read it burns very clean, no smoke, very little if any carbon build-up so no need to de carb motors. I just was wondering if anybody knew of any detrimental effects it may have as a pre-mix on my old tower. I just spent $2500.00 rebuilding this power head last summer and don't want to make another costly mistake. It does say suitable as a pre-mix and exceeds TC-W3 specs. Thanks John.

 

[wired247]

Re: 115 Tower oil question

The XD50 is a synthetic/dyno oil blend. 50% dynthetic. XD 100 is 100% synthetic.

Any TC-W3 oil will work just fine. Make sure that when they say "exceeds" TC-W3 that is actually IS TC-W3 certified. Evinrudes is but some companies ( cough...Amsoil... cough) say their oil exceed TC-W3 but is NOT actually TC-W3 certified which means it doesnt get used in my outboard.

 

[Chris1956]

Re: 115 Tower oil question

You also do not want to use direct injection oil in your carb'd motor. Some of it may work (Mercury Optimax?), but I think the e-TEC oil is not suitable.