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Synthetic oils...which brand?

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Old Feb 25, 2005 | 12:10 AM
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Default Synthetic oils...which brand?

Is there really any difference between brands...Mobil 1, Castrol Syntek...Havoline...Walmart Synthetic....etc?

Seems to be a big difference in cost...
Mark
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Old Feb 25, 2005 | 12:33 AM
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Old Feb 25, 2005 | 12:54 AM
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please just use mobil 1 5w-30. if you have a pep boys in your area you can buy a calendar at the counter for $1. In the calendar there is a coupon for "buy 3, get 3 free" of mobil 1 fully synthetic oil. This will save you $15 off the normal $30 per 6 quarts. head to your nearest pep boys!!
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Old Feb 25, 2005 | 05:06 AM
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If you look at the used oil analyses, many have been getting really good results with German Castrol 0W-30. I ran Amsoil up to the last change and have the oil analyzed after each change. It has provided excellent results to date. Mobil-1 is a good oil, but with a viscosity of 10 Cst at 100 degrees C, which is almost in the 20W range, I want an oil in the upper third of the 30W range. I am now running the German Castrol.

For more information, visit Bobistheoilguy.com
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Old Feb 25, 2005 | 05:38 AM
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I only use Mobile 1 in the vette.
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Old Feb 25, 2005 | 06:53 AM
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Originally Posted by allegro
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Old Feb 25, 2005 | 07:12 AM
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Originally Posted by vettenuts
If you look at the used oil analyses, many have been getting really good results with German Castrol 0W-30. I ran Amsoil up to the last change and have the oil analyzed after each change. It has provided excellent results to date. Mobil-1 is a good oil, but with a viscosity of 10 Cst at 100 degrees C, which is almost in the 20W range, I want an oil in the upper third of the 30W range. I am now running the German Castrol.

For more information, visit Bobistheoilguy.com
Not sure I agree with the "thicker is better" anymore. Shear strengths are so good with modern synthetics that I would rather error on the side of thin to make sure I was geting complete flow in every passage.

This is heresay for you oil analysis guys but there now is even a school of thought that says an oil that shows higher metal may be just doing a good job of carrying things in suspension (as it is vital that they do) while some oils that show up really good in analysis (low metals) may be accomplishing that by just depositing the metals around the engine rather than carrying them in suspension.

All that comes down to me using Mobil 1 10w/30.

Last edited by Richin Chicago; Feb 25, 2005 at 10:36 AM.
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Old Feb 25, 2005 | 07:33 AM
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Weren't you previously running another oil?
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Old Feb 25, 2005 | 09:39 AM
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Originally Posted by vettenuts
If you look at the used oil analyses, many have been getting really good results with German Castrol 0W-30. I ran Amsoil up to the last change and have the oil analyzed after each change. It has provided excellent results to date. Mobil-1 is a good oil, but with a viscosity of 10 Cst at 100 degrees C, which is almost in the 20W range, I want an oil in the upper third of the 30W range. I am now running the German Castrol.

For more information, visit Bobistheoilguy.com
I know !

But....better stick with SAE grading to meet your warrantee. Would hate to argue after usiing a non-specified oil.
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Old Feb 25, 2005 | 10:22 AM
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Originally Posted by allegro
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Old Feb 25, 2005 | 01:54 PM
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Originally Posted by Z06-JIM
I only use Mobile 1 in the vette.
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Old Feb 25, 2005 | 03:25 PM
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Nope, they are all the same. Seriously, I use Mobil 1. Works fine, and I'm sure it will let me get the 150,000 miles out of my car that I want.
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Old Feb 25, 2005 | 03:35 PM
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Mobil 1 5W30. Why anything else?
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Old Feb 25, 2005 | 05:48 PM
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The first & best!
AMSOIL
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Old Feb 25, 2005 | 07:38 PM
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Most forum members change their oil so often they could probably run peanut oil and not hurt the engine.
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Old Feb 25, 2005 | 09:49 PM
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I agree .. it (peanut oil) does have the highest smoke point !!
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Old Feb 25, 2005 | 10:46 PM
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I run Royal Purple




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To Synthetic oils...which brand?

Old Feb 25, 2005 | 11:23 PM
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Originally Posted by Z06-JIM
I only use Mobile 1 in the vette.

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Old Feb 26, 2005 | 12:02 AM
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I'm currently using GC 0w-30...But will be testing out Amsoil here in about 750 miles
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Old Feb 26, 2005 | 12:43 AM
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I use Amsoil in the Vette, Mobil1 in the other two vehicles.
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