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Old 07-04-2006, 08:32 AM
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Default 525's oil in coolant

I have a small amount of oil in the coolant tank. Engine oil seems clean. What is normal oil temp when running hard? I am seeing 220 both sides. Thanks
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Old 07-04-2006, 11:40 AM
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Default Re: 525's oil in coolant

Oil cooler(s)?
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Old 07-05-2006, 08:09 AM
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Default Re: 525's oil in coolant

Possibly a Head gasket on the fritz... J
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Old 07-05-2006, 10:57 AM
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Default Re: 525's oil in coolant

Oil Cooler.
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Old 07-05-2006, 12:00 PM
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Default Re: 525's oil in coolant

what year 525's ?
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Old 07-05-2006, 07:20 PM
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Default Re: 525's oil in coolant

05
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Old 07-05-2006, 08:44 PM
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Default Re: 525's oil in coolant

my oil temp when run up to 220 than down to 180.
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Old 07-06-2006, 12:45 AM
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Default Re: 525's oil in coolant

I have the same issue and I've been told by the experts that the oil cooler is raw water cooled, not antifreeze. My engine has passed all the basic coolant leak tests and so far haven't deemed it necessary to do a full leakdown test. But the headgasket issue had been brought up. I have been keeping an eye on it but my engine is still running fine. At WOT I see about 200 or so on the oil temp and about 150 crusing around.
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Old 07-06-2006, 02:40 PM
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Default Re: 525's oil in coolant

there is a recall on the head bolts on SOME 525's and the coolant leaks that might be the problem.
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