merc drive oil turned to sludge !

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06-14-2011 | 06:39 PM

#11

pagerboy

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Joined: Dec 2009

Posts: 216

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was told by the dealer today that when they change drive oil they allways remove tank and wash it out!

06-15-2011 | 07:20 AM

#12

Knot 4 Me

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Joined: Jun 2005

Posts: 8,407

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From: Central IL

Quote:

Originally Posted by cloudmaster_321

If you changed it out at the intervals that you are supposed to, you wouldn't have a sludge problem. You going to run your car oil for 5 years and expect it to look clean too?

I change my gear lube twice a season and it still occurs after time.

06-15-2011 | 04:42 PM

#13

JRider

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Joined: Jul 2007

Posts: 2,640

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From: MI

I had the impression it was from mixing a synthetic into the resi with the merc oil. I had the same thing happen in an outboard lower unit...sludgefest