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Jeep Wrangler YJ
YJ General Discussion
Gearbox oil
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<blockquote data-quote="DOWNS" data-source="post: 441762" data-attributes="member: 21038"><p>I use 10W40 usually, in both my AX5 and my old T90 CJ2 transmission. GL4 is getting pricey and harder to find. There are a few tractor gear box fluids that are supposed to be good to go and much cheaper than GL4 gear oil. But 10w40 works as well. I do shorten the change interval a bit just for peace of mind since engine oil isn't as resistant to shearing as gear oil typically.</p></blockquote><p></p>
[QUOTE="DOWNS, post: 441762, member: 21038"] I use 10W40 usually, in both my AX5 and my old T90 CJ2 transmission. GL4 is getting pricey and harder to find. There are a few tractor gear box fluids that are supposed to be good to go and much cheaper than GL4 gear oil. But 10w40 works as well. I do shorten the change interval a bit just for peace of mind since engine oil isn't as resistant to shearing as gear oil typically. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Gearbox oil
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