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Older 2 stroke Motor fuel to oil ratio
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<blockquote data-quote="FormerParatrooper" data-source="post: 436676" data-attributes="member: 21034"><p>I have seen where a few people have mentioned they add more oil to thier fuel on older 2 stroke motors. I understand the concept, but have not seen a standard of how much more oil to add. </p><p></p><p>Also, my particular motor, a 25hp Evinrude (1974) states the use of 91 octane fuel. Was that because of the amount of lead in the fuel in 1974? What would be an acceptable octane to use? Only 87,88 and 92 are available where I live.</p></blockquote><p></p>
[QUOTE="FormerParatrooper, post: 436676, member: 21034"] I have seen where a few people have mentioned they add more oil to thier fuel on older 2 stroke motors. I understand the concept, but have not seen a standard of how much more oil to add. Also, my particular motor, a 25hp Evinrude (1974) states the use of 91 octane fuel. Was that because of the amount of lead in the fuel in 1974? What would be an acceptable octane to use? Only 87,88 and 92 are available where I live. [/QUOTE]
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