What oil do you use in your 5.0

I'm wondering what oil (viscosity and brand) people are using in their new Mustangs. I assume Ford uses some variant of Motor Craft oil from the factory, but I will likely change to Mobile One (or maybe Royal Purple) when I get my car arrives sometime in late November.

Thanks!
 
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Whatever is on sale at WallyWorld is good enough for me. Don't worry so much about the oil. Spend your money on a good Motorcraft Filter instead.

Personally I'd prefer to use a quality oil and filter. That's one place I won't "cheap out" after I had a camshaft break on a VW diesel due to an obstructed oil passage that supplies oil to the head.

The total cost for a new head, stretch bolts, timing belt, head gasket, water pump, engine mount, etc. was over $4000
 
Ford uses semi-synthetic as factory fill.

I'm with you on mobil 1, top quality and really good price at walmart.

And definitely either a motorcraft or Wix or NAPA Gold oil filter. Wix makes the NAPA filter and they have very good filter media and use a synthetic anti-drainback valve.