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What motor oil brand to go with?

Old 7/1/11, 08:18 AM
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Originally Posted by LQQK

The information is mind boggling to me, he always seems to come to the same conclusion, Amsoil, I want to believe what he's putting out,,,but I do wonder if he has other motives.
I think you are wise to wonder exactly that.
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Old 7/1/11, 04:18 PM
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Originally Posted by P0 Corsa View Post
Bueller, I am fairly certain it is Conoco-Phillips.
Cool, thanks!

Within the next couple of weeks I am going to send in a virgin Motorcraft oil sample to Blackstone to get a baseline reading, along with a sample of the oil after 1500 miles. I doubt the oil's properties will have changed much in that short of time, but I would like to see what metal and casting material was thrown off from the factory engine build.
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Old 4/13/13, 06:54 PM
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Amsoil does not make a 5W50 oil. When you go to their website & enter either the BOSS or GT500 engine, the results are: no recommended Amsoil product.

I like Amsoil & use it in my dirtbikes. I also use Redline products like their water wetter. Since our GT500 is only street-driven, I will feel confident using either the Motorcraft or Mobile1 full synth.

Why, because my dad told me so. Why should I believe him? He was a Petroleum Engineer & the son of an auto mechanic. His entire career was working on refining catalysts for petroleum. And, a number of patents for the current refining process for petroleum have his name on them.
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Old 4/14/13, 01:20 PM
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Whatever you decide to go with at least use what Ford recommends. Like someone said earlier in the thread, Ford didn't arbitrarily choose 5w50 because they were having a weird day. They must have chosen it for a reason and if you stay with that then you won't have any warranty issues. That being said, I would rather use something other then Motorcraft, just don't see paying 10 a quart for an oil that could be manufactured by Mobil1 for all I know.
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Old 4/14/13, 02:06 PM
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I've used amsoil in a couple of my last cars, it came out right after i put it in. Last car was 2005 GTO, did motor, trans and rear. Motor noisy, trans notchy and rearend noise.

I used Shell Rotella for the GTO and i'm sticking with the Ford oil for the Mustang.
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Old 3/28/15, 01:27 PM
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fun Pennzoil (new synthetic motor oil out of natural gas to consider) promo video clip for viewing...

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Old 8/16/17, 08:02 PM
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Pennzoil 2.0 promo clip: Demon gets Exorcised...

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Old 8/17/17, 05:20 PM
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OEM oil. I get it cheap from the dealer and I keeps the warranty.
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