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Old 06-16-2001, 08:41 PM
400E 400E is offline
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Join Date: Jun 2001
Location: Omaha, NE
Posts: 962
I may be way off base here, but I have read elsewhere that noisy lifters on other models, especially older diesels, can be substantially reduced by a switch to synthetic oil, like Mobil 1. IF your noise is in fact lifter-related as suggested above, might be worth a try.

I switched over at 80,000 miles on my 400E. . .

[Edited by 400E on 06-16-2001 at 08:44 PM]
'93 400E
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