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Jeep Wrangler YJ
YJ General Discussion
Safe for Yellow Metals GL-5
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<blockquote data-quote="machoheadgames" data-source="post: 441133" data-attributes="member: 18789"><p>Manual should have said GL3 back then which would be superseded to GL4 later on. GL5 was always a misprint. There are some “safe for yellow metal” GL5s but they still have more sulfur than GL4 and don’t work as well in a manual. I am using Driven 80W-90 GL4 and it works great in multiple manual transmissions. I no longer use Redline.</p></blockquote><p></p>
[QUOTE="machoheadgames, post: 441133, member: 18789"] Manual should have said GL3 back then which would be superseded to GL4 later on. GL5 was always a misprint. There are some “safe for yellow metal” GL5s but they still have more sulfur than GL4 and don’t work as well in a manual. I am using Driven 80W-90 GL4 and it works great in multiple manual transmissions. I no longer use Redline. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Safe for Yellow Metals GL-5
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