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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

Oil change= big difference.

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Old Jul 13, 2021 | 11:56 AM
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Hotcross
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Oil change= big difference.

What a difference an oil change made on my 06 6.0. I have no idea what kind of oil the PO put in this truck or of he used an additive. I used Motorcraft 10w30 and Archoil, it starts better now, pulls harder and is smoother. I was told by PO to change oil at 109000 miles but who knows how old the oil really was. He gave me half a bottle of Archoil fuel additive but I've been using Motorcraft instead. This was my first oil change on a Powerstroke , I'm guessing the big change was because of the type injection systems used on these early motors.
 
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Old Jul 13, 2021 | 01:41 PM
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Another thing I noticed was the EOT and ECT stayed closer together than before. 2 to 6° difference instead of 8 to 12° before oil change.
 
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