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| Differential Oil https://slantsix.org/forum/viewtopic.php?t=22945 |
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| Author: | emsvitil [ Sun Apr 29, 2007 1:33 pm ] |
| Post subject: | Differential Oil |
The specs for my 64 call for Hypoid Lubricant or Multi-Purpose Lubricant Is that equivalent to GL-4 or GL-5? When did the GL-4 and GL-5 specs come out? If it's GL-4, any harm in using GL-5? (I have some leftover GL-5 quarts) |
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| Author: | AnotherSix [ Tue May 15, 2007 11:24 am ] |
| Post subject: | |
GL 5 is fine, so is GL 6. I like to run a synthetic 80-90wt since they meet the viscosity spec but flow much better cold and have less drag when hot too. Every bit helps when you have a small engine. Cost is not such an issue since it does not get changed very often. |
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