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| Joined: | 12-17-2009 |
| Location: | Hailey, Idaho USA |
| Posts: | 83 |
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I'm leaning towards refilling with Red Line 10w-40.
To bring this thread to a happy conclusion.
I have been running Red Line 10w-40 for a few hundred miles now with no apparent adverse side effects. Looking at the oil on the dip-stick I would have to say that it looks really good.
On a related note: I found that even after 37 years the factory service bulletin to drill the air bleed hole in the aux housing had NOT been done to JH 12827. I drilled the hole and now get oil pressure within about 5 seconds of start-up. Without the hole I was looking at 0 pressure for as much as 30 seconds.