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DURATEC Performance (2003-2007) The place to chat about any Duratec 23, 23E, and 20 engine performance, tuning and exhaust related upgrades.

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Old 08-03-2012, 10:53 PM   #51
felixthecat
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I'll stick w/ 5w20 Mobil1 w/ a FL842 filter.
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Old 08-04-2012, 01:10 AM   #52
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Heavier oil should be run when the car ages. If you have 125K+ on the car, run 5w 30. If you just rebuilt the engine, run 5w 20. More worn out parts need better lubrication to resist further wear.
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