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Two stroke oil?

Old 01-11-19, 04:30 PM
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Two stroke oil?

There seems to be some debate on themerits of adding two stroke oil to the fuel at every fill up. If the OMP is right, then it *shouldn't* be needed. On the other hand it's pretty cheap insurance too.

What's the going thought on the 13B? Add oil to fuel, or count on the OMP and check the oil frequently?
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Old 01-11-19, 05:35 PM
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From my understanding the oil squirters are lacking in coverage. Premixing ensures full lubrication. I have my OMP working along with premix.
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Old 01-11-19, 05:55 PM
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Originally Posted by AE_Racer View Post
From my understanding the oil squirters are lacking in coverage. Premixing ensures full lubrication. I have my OMP working along with premix.
Cool...kinda makes sense. How much oil do you premix in per tank? And which oil are you using AE?
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Old 01-11-19, 08:19 PM
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half ounce per gallon so 8-9 oz per tank. I don't worry too much about getting it perfect just close. I'm using idemitsu.
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Old 01-12-19, 08:49 AM
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Opinions will vary but I also pre-mix at about half rate (.5 oz. @ gallon) with a working OMP (FD) just using over-the-counter 2 cycle oil. Not certain over time of the effect on the stock cats if you have them, and on an NA you probably run some risk of increased carbon build up, which can be an issue on a rotary. OTOH, if you have an engine with many miles on it, starting premix now might slightly help dynamic compression but it isn't going to reverse housing or seal wear. And of course owners who have to deal with emissions testing probably wouldn't want to do it.

Last edited by Sgtblue; 01-12-19 at 08:51 AM.
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Old 01-12-19, 11:01 AM
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No emissions testing where I am, and the engine has 36k miles on it. It feels right when warmed up and running, so a little prevention will help keep it that way hopefully!

So far, no nasty surprises discovered in the powertrain. The wiper switch is SNAFUed, but that's pretty common and can be fixed. Working on the trunk struts now.

Snowing like crazy now, so it will stay tucked away until spring. Plenty of time to get it right in the shop right now.
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Old 01-14-19, 02:28 PM
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Petit racing has a good video on premixing via youtube.
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