Re: switching from mobil 1 to Royal Purple
Quote:
Originally Posted by Chances50
With as tight as the clearances are on these motors there is a reason ford put 5/20 in them. My motor has been run on moble 1 since day one and it looked brand new inside when we pulled it apart (except for the headgasket) I'll never run anything but moble 1 in a modular motor.
Usually when you have black burnt oil built up it from lack of changing the oil.
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i change the oil on it every 3K or every 6 months
i felt the same about mobil 1, but just showed when i sae it. like i sai a really same amount doesn't matter, as long as its the best
ASh
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2001 lazer red v6 Mustang coupe sold in Aug 2006
2004 screaming yellow 5.0 sc Mach 1 sold in Oct 2012
2013 grey 6 speed coupe GT Mustang Sold in Feb 2014
2013 RED Dodge Charger R/T Sold Nov 2014
2002 custom Blue 02 Auto Trans AM Sold June 2015
1998 Cobra Black Sold summer 2016
Current
2009 Ford F350 FX4 March 2017 (work truck)
2003 OW 5.0 Mach 1 Aug 2020
ASh
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