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1830 drive motor whine
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<blockquote data-quote="Gearclash" data-source="post: 132224" data-attributes="member: 11467"><p>I think there are different viscosities of AW. Do you know what "number" AW you put in? If it is about the same viscosity as 10W-30, it would probably be fine just to add a ZDDP additive and leave it. As I recall, AW oils tend to be in the mid 3 digit figures of ZDDP in PPM. Top tier hydraulic oils are in the very low 4 digit figures, so about double. For what its worth, Case used to call for 10W-40 engine oil for the hydraulic system, so if your AW is a little on the heavy side I wouldn't worry about it unless you are going to run this machine in cold weather, as in well below freezing.</p></blockquote><p></p>
[QUOTE="Gearclash, post: 132224, member: 11467"] I think there are different viscosities of AW. Do you know what “number” AW you put in? If it is about the same viscosity as 10W-30, it would probably be fine just to add a ZDDP additive and leave it. As I recall, AW oils tend to be in the mid 3 digit figures of ZDDP in PPM. Top tier hydraulic oils are in the very low 4 digit figures, so about double. For what its worth, Case used to call for 10W-40 engine oil for the hydraulic system, so if your AW is a little on the heavy side I wouldn’t worry about it unless you are going to run this machine in cold weather, as in well below freezing. [/QUOTE]
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