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Oil psi--4.0 vs. 4.6

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Old 08-19-2011, 04:18 PM
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Art161
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Default Oil psi--4.0 vs. 4.6
Okay. I'm not all that knowledgeable about the workings of an engine. Could someone please explain why the Ford 2007 Mustang Workshop Manual states a minimum engine oil pressure for the 4.0 engine as 15 psi @ 2000 rpm at normal operating temperature, and the 4.6 engine as 75 psi under the same conditions? That seems like an awfully big difference. Thanks.
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Old 08-19-2011, 09:17 PM
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SeVeReDiStOrTiOn
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75 seems high for operating temp but it's probably because of the VCT...just a guess though
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Old 08-20-2011, 09:49 AM
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157dB
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VCT requires higher oil pressures to function properly.
Whats the oil pressure for a 2011 V6 with VCTii?
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