Join Date: Jul 2006
Location: Tuttle, OK
Thanked 20 Times in 18 Posts
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Sudden drop in milage
All i did differently lately is changed my oil and thats about when i noticed the drop. Was getting 20-21 highway at 65 mph now 16-17 @65 mph.
What else might cause this? Could it be ther oil? I know before i changed it, it had motorcraft oil in it and this time i used Rotella. Maybe i need to get some more Motorcraft?
2003 6.0 F350 dually on high cholesterol fuel (WVO)
2000 7.3 Excursion also on a high cholesterol fuel
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