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Old 04-10-2012, 02:40 PM   #22
ASH302
Soldier for Christ
 
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Join Date: May 2009
Location: Willis, TX at The Daddy ASh Ranch
Posts: 30,596
Re: switching from mobil 1 to Royal Purple

Quote:
Originally Posted by TRMach1 View Post
I don't know what to think about this whole oil branding thing. I used Mobil 1 full synthetic, 5w20 in my stock motor for over 60k miles, never a problem.

When I was having my Aluminator installed, we were on the phone with a Ford Racing tech about an unrelated issue, and he said to break the engine in for 500 miles on regular fossil blend 5w30 oil, then switch to a full synthetic 5w30, but to never go back to the 5w20! Almost four years and 12k miles later, of using Mobil 1 5w30, here my car sits with a broken engine!

How much the brand and weight of the oil played in the engine failure, I have no clue. Maybe we'll learn something more when it is finally torn down in the next couple of weeks, but one thing is for sure, the rear main seal and bearing are toast, and I'm guessing at least one, or more, rod bearings are gone, and possibly the oil pump!
did this just happen with your motor? i'm sorry to hear that
you going to use a aluminator again?

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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