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Old 04-04-2012, 04:15 AM
shaker281 shaker281 is offline
Join Date: Mar 2011
Location: Illinois
Posts: 193
shaker281 is on the right road

I put QS Ultimate durability (full synth) 5w30 in my 2010 1500 miles ago. Prior to that I was using the MC synth blend 5w20. At the same time I changed the air filter to a new Motorcraft unit. What I found in there appeared to be a Fram. I do not know why, the car has 30K miles (bought used with 18K miles).

Interestingly the MPG went up from 23.5 (my daily commute) to 25.5 MPG. In fact, I saw 27.4 tonight on my drive in to work (37 miles city/HWY). I am still rather surprised.
2010 Atlantis Green 402A, NAV, ACC, AMS, 20's
2008 Alloy GT500 pulley/tune 540 RWHP SAE

Last edited by shaker281; 04-04-2012 at 04:17 AM.
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Old 04-04-2012, 08:46 AM
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gsilva gsilva is offline
Join Date: Mar 2006
Location: Alpine, Texas
Posts: 90
gsilva is on the right road

The only oil I use or will ever use is Amsoil.
90 SHO, Now 190k, eibach/sensa-trac, ASFB's, SBC's reinforced MM's. making it more fun to drive. Optima in trunk, doing maintenance.
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Old 04-04-2012, 12:17 PM
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dohcsable dohcsable is offline
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Join Date: Jan 2007
Location: Indiana
Posts: 705
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Originally Posted by Unknown_Driver View Post
the only problem with royal purple is the colour is actually purple and can hinder as to how dirty the oil actually is (for the people that change oil based on colour)
It turns amber after so many heat cycles, it doesn't stay purple.......

Royal Purple, Amsoil, Mobil, or Motul......nothing but those for me.
91,5 mtx
01 fukus
95 318ti
04 zx10r
63 IHC 2ton
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