Originally Posted by dan50
Motorcraft semi-syn is highly regarded on Bobistheoilguy.com based on used oil analyses published there, so it certainly isn't junk. Amsoil if fine (if you can accept its Ponzi-like marketing approach), but is really only useful if you go to truly extended oil change intervals. The world is full of cars that go 200,000 miles following the factory maintenance schedule with regular old conventional oil. To get really good service out of an engine, there's no need to go to an expensive, boutique oil like Amsoil, just use a name brand meeting the correct specs and change it regularly.
Like I said, not wanting to start an oil debate. People can think what they want. I have spent a lot of time on this subject and I gave my advice. Take it or leave it.
2012 Race Red 5-door SE, 18" Ti wheels, Ti headlights/fog bezels, 20% tint, debadged trunk
2002 Sonic Blue SVT - supercharged (sold)
2008 Vista Blue SE (gone)