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General Chat (Vincent Related)
Another Oil Thread
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<blockquote data-quote="Monkeypants" data-source="post: 109252" data-attributes="member: 2708"><p>Jim did some testing with three additives. One of those was branded Active 8, could that be the additive you mention?</p><p>He was in discussions with various oil chemists during the testing, which went on for weeks. One of the chemists told him to be prepared for extreme variation in results when using the additives.</p><p>That turned out to be correct. With some oils the additive would add film strength and with others film strength would diminish.</p><p>The blends did much the same. Adding two oils with 300 lb film strength might result in an oil with 400 lbs or 200 lbs.</p><p>In the end, he found plenty of oils capable of doing the job without having to use additives or blends.</p><p>He intially decided to do the testing to see how his own favourite oil, the expensive Royal Purple XPR, would stand up. This was after wearing out a high lift cam at just 25,000 miles.</p><p>What he learned was that the Royal Purple XPR was not a good choice for that motor.</p><p>It likely contributed to the rapid wear.</p><p>After he tested a few other oils, Access Norton members started sending him oil for testing. He tested oils from all over the world.</p><p></p><p>Bel Ray is another company with several oils that tested well.</p><p></p><p>Glen</p></blockquote><p></p>
[QUOTE="Monkeypants, post: 109252, member: 2708"] Jim did some testing with three additives. One of those was branded Active 8, could that be the additive you mention? He was in discussions with various oil chemists during the testing, which went on for weeks. One of the chemists told him to be prepared for extreme variation in results when using the additives. That turned out to be correct. With some oils the additive would add film strength and with others film strength would diminish. The blends did much the same. Adding two oils with 300 lb film strength might result in an oil with 400 lbs or 200 lbs. In the end, he found plenty of oils capable of doing the job without having to use additives or blends. He intially decided to do the testing to see how his own favourite oil, the expensive Royal Purple XPR, would stand up. This was after wearing out a high lift cam at just 25,000 miles. What he learned was that the Royal Purple XPR was not a good choice for that motor. It likely contributed to the rapid wear. After he tested a few other oils, Access Norton members started sending him oil for testing. He tested oils from all over the world. Bel Ray is another company with several oils that tested well. Glen [/QUOTE]
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