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Offline imz

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Two Stroke
« on: March 07, 2018, 11:28:26 am »
Good day all

I would like to know if I need to use specific two stroke engine oil on my outboards or if I can use any two stroke oil.
Will two stroke oil used on bikes suffice?

Thanks in advance

Offline John F

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Re: Two Stroke
« Reply #1 on: March 07, 2018, 12:00:23 pm »
Any special reason for your question? Is outboard oil not available in your area?... for outboards you should use TC-W3 oils or other as recommended by the manufacturer

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Offline imz

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Re: Two Stroke
« Reply #2 on: March 07, 2018, 12:46:03 pm »
The main reason for my question is I have been given 5 litres of 2 stroke and want to know if its safe to use on my 85hp Yamaha outboards.
It is motorcycle 2 stroke TSC-3 and I have been told it is safe to use, just want to make sure..

Offline John F

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Re: Two Stroke
« Reply #3 on: March 07, 2018, 01:01:26 pm »
Not ideal but yammies 85s will most likely survive anything you feed them!!! I would not use it personally....

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Offline imz

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Re: Two Stroke
« Reply #4 on: March 07, 2018, 01:12:51 pm »
Thank you so much for your advice :tkx:

Offline dugong

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Re: Two Stroke
« Reply #5 on: March 07, 2018, 01:42:57 pm »
No problem using it at all, especially on older tech motors.
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Offline imz

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Re: Two Stroke
« Reply #6 on: March 07, 2018, 01:56:48 pm »
Awesome thank you guys. All advice is greatly appreciated as I am relatively new to boating and I do know how costly mistakes can be  duh

Offline GUPPIGETTA

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Re: Two Stroke
« Reply #7 on: March 07, 2018, 02:13:46 pm »
Hi Imz, outboard motors run at a lower temperature than other two strokes, so using normal 2 stroke oil your motor won't burn all the oil in the cylinders causing the spark plugs to foul up quicker than when using outboard oil, which burns at a lower temperature. Just my 2c.

Offline Cam Mundy

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Re: Two Stroke
« Reply #8 on: March 08, 2018, 04:00:06 am »
Use the right stuff bud and not the cheap no name brand stuff either, pricey oil is still cheaper than outboard repairs or replacement

Offline imz

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Re: Two Stroke
« Reply #9 on: March 08, 2018, 08:24:32 am »
You guys are a wealth of info

Offline LGF

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Re: Two Stroke
« Reply #10 on: April 01, 2018, 10:14:36 pm »
On this question......


I had to stock up the reserve two-stroke reservoir for the Yamaha 115 v4 and went to Motor King and Marine.


Once there I looked at Quicksilver TC-W3 as I could not find Yamalube TC-W3 and was then advised that thereís yet another TC-W3 also produced by Quicksilver that is more costly, but apparently burns cleaner and thus all the  blah blah blah benefits.


Mentioning this as I was told never to mix brands of TW-C3 and if memory serves me at all, the reason was something along the line of the different synthetic compounds donít mix well?


 That said I took the boat out on several trips after mixing the new 5lt Superior Quicksilver TW-C3 oil and couldnít see/hear or feel a difference, speaking of better fuel consumption, increased power, less smoke at startup etc etc. just wondering if this is truth or just clever sales and /or marketing tricks?
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Offline Cam Mundy

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Re: Two Stroke
« Reply #11 on: April 04, 2018, 08:36:44 am »
It's mostly bollocks LG especially when it comes to older motors. The main factors to consider have been mentioned water cooled outboards run cooler than air cooled 2 strokes so a different grade of oil is needed. the other thing to consider is that marine grade oils are designed not to mix with water this applies to gear box oil, four stroke oil and two stroke. if you have water in your fuel and cheap two stroke you end up with a layer of mayonnaise at the bottom of your tank with the petrol sitting on top which isn't great for you motor. 

Offline LGF

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Re: Two Stroke
« Reply #12 on: April 04, 2018, 10:49:53 am »
Thanx for that

as mentioned I didn't see any of the issues mentioned to me at that point after I mixed the higher grade TW-C3 (Quicksilver) with the last bit of Yamalube that was in the reservoir.

I don't have any issues with the Yammy, its a solid motor, honestly very lucky and happy with it, haven't had a single issue, but then again, I change plugs and filters regularly and have cleaned the carbs, even though it wasn't necessary.
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