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Old Mar 9, 2020 | 05:44 PM
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oil temps

How high is too high for the oil temp to prevent damage to oil filter plastic. I know ten deg. difference watch it . But in a bind and need to use vehicle till I get my others fixed.
 
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Old Mar 9, 2020 | 05:49 PM
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Cheezit stated that the plastic starts to flow at 350 *F. I think the assumption was at 300 *F the plastic began to deform.

Personally I think that damage can be done to soft goods (ie gaskets and o-rings) at much lower temperatures (although it may take time to have a negative impact). I hate to see over 220 myself.
 
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Old Mar 9, 2020 | 06:37 PM
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I'm already their, 30 deg. spread , not wanting it to go higher than 240 tops, just in a bind with vehicles right now. Thanks for replying so fast will keep a close eye on it thru torque.
 
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Old Mar 9, 2020 | 06:41 PM
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Originally Posted by Mich6.0
I'm already their, 30 deg. spread , not wanting it to go higher than 240 tops, just in a bind with vehicles right now. Thanks for replying so fast will keep a close eye on it thru torque.
I've been over 240 EOT for just short periods. I think Engine will defuel in the 250 range - Mark likely knows what that temp is...
 
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Old Mar 9, 2020 | 06:42 PM
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I’ve read on several forums/threads that the engine will start to limit power at an oil temp of 250 or so (I think I remember 253) but I have not verified that
 
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Old Mar 9, 2020 | 07:14 PM
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PC/ED manual states derating at 253. I know that some people have been there and not noticed it though. May be subtle at the beginning.
 
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