Mlti ratio 2 cycle oils and multi use ash and ashless
I don't know a lot about 2 cycle oils but some equipment calls for ashless 2 cycle oil, TC-W3 oil, the most common manufacturer name that uses this oil is Toro for at least their 2 cycle snowblowers.
There are also different ratios for oils. Years ago the 2 cycle ratio was 16:1, then it went to 20 and & 24:1 but only for a short time. It went to 32:1 for a long time, then 40:1 and 50:1. My understanding some are even higher at 70:1.
And before 2 cycle oils existed, the recommended oil was 30wt ND (non-detergent) which believe it or not, you can still BUY! And for a lawnmower, there is no need for a detergent oil, you can feel comfortable using 30ND. It's just a sump lubricating the connecting rod crank bearing and the lower cylinder wall.
There are some 2 cycle oils when mixed at one ratio can be used in equipment that calls for different ratios. Below re 2 links to such oils, Opti2 and Valvoline. Possibly there are others. They also make the claim that you can use this in equipment that calls for ashless 2 cycle oil. I have no idea if this is the right thing or not.
2 cycle oil - Opti2, Opti4, and Opti-Mizer MAX - Premium Lubricants from Interlube International
The Valvoline link below claims it is for both TC-W3 and Jaso-FB rated and works in all 2 stroke equipment. Air cooled, small equipment and water cooled, large marine equipment all the same. Autozone almost always has it in stock for about 6 bucks per quart. I may give it a try next time I need some 2 stroke oil.
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