Just curious, but what sort of equipment uses a 16:1 mix, and how old is it? Outboard motors have been 50:1 or higher for over forty years.
As said earlier, this subject has been beat to death many times here with no resolution. Personally, I use Opti2 mixed with premium gas in all my power equipment. I just mix it according to what it says on the bottle; I have no idea what the ratio works out to be. Of course, my equipment--two Stihl saws and a Stihl brushcutter--is relatively modern. My oldest saw is a mere sixteen years old. If you've got a 50 year-old saw, you might want to stick with a rich mix.
It's important that you don't use TC-W rated oils (typically TC-W3 these days) in your air-cooled power equipment. TC-W oil is specifically made for water-cooled outboard motors. Stick with oil that carries the JASO FD or ISO-L-EGD rating. These are the most stringent ratings for air-cooled oils. FD and EGD are the same spec from different standards agencies.
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Today's Featured Article - A Question for Dads This recent topic from the Tractor Talk discussion board is being highlighted because it is an awesome display of the caliber of individuals that have made this site their own. The young person asking questions received positive feedback and advice from total strangers who "told it like it is" with the care many reserve for their own kids. The advice is timeless... so although it isn't necessarily antique tractor related, it will be prominently displayed in our archives to honor those who have the courage to ask and those who have the courage to respond in an honest, positive manner.
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