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post #1 of 18 Old 06-28-2011, 09:51 PM Thread Starter
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Question What type of oil to use?

Hi to all my green handle friends! What type of oil do you recommend for our 6.0L? Regular Motorcraft or a synthetic? If a synthetic what brand and weight for summer and what for winter. I live in the mountains of Idaho and it gets damn cold in the winter.

Also, what Bypass Oil Filtration Kit do you suggest?
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post #2 of 18 Old 06-28-2011, 09:58 PM
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I just switched to Rotella T6 5w-40. My truck sure seems to like it, and I'm sure other T6 users will chime in here shortly. I'm no help with the bypass filter, since I don't have one, but the Amsoil one is discussed a lot.

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post #3 of 18 Old 06-28-2011, 10:27 PM
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I use Amsoil 15w40 but will be switching to 5w40 because these motor move 15 to 18 gallons a min. You should use Syn oil Ford filters only and the stock Ford filter cleans the oil to 20 microns and the by-pass cleans to 2 microns max 5k on the oil even with a by-pass because of the shear of the oil by the injectors this my help and yes i have Amsoil by-pass
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post #4 of 18 Old 06-29-2011, 05:44 AM
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2nd the Amsoil. Im running 5w40 and the truck really likes it. You can hear the difference. Next oil change I'm throwin in some Rev-X for some experimenting.


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post #5 of 18 Old 06-29-2011, 06:45 AM
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Run a 5w40 synthetic. Your motor will tell you what brand to run so start out with any of them and do real world testing.

Mobil 1, Valvoline Extreme Blue, Rot T6, and Schaffers 9000 top my list in that order. Amzoil fell flat on it's face for me during cold weather trials. Motor clacked so loud and hard sounded like it was coming apart.

I have ran the Valvoline with my PHP FICM tuning during the cold months. Truck starts right up, clacks for maybe 10-15 seconds and then smooths out. The only way you are going to know for sure what to run is to listen to the motor and feel how it drives.

Any quality oil by-pass kit will do the job. Don't think saving a buck is worth it. Most kits I would trust run $300+.


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post #6 of 18 Old 06-29-2011, 06:50 AM
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Quote:
Originally Posted by HeavyAssault View Post
Run a 5w40 synthetic. Your motor will tell you what brand to run so start out with any of them and do real world testing.

Mobil 1, Valvoline Extreme Blue, Rot T6, and Schaffers 9000 top my list in that order. Amzoil fell flat on it's face for me during cold weather trials. Motor clacked so loud and hard sounded like it was coming apart.

I have ran the Valvoline with my PHP FICM tuning during the cold months. Truck starts right up, clacks for maybe 10-15 seconds and then smooths out. The only way you are going to know for sure what to run is to listen to the motor and feel how it drives.

Any quality oil by-pass kit will do the job. Don't think saving a buck is worth it. Most kits I would trust run $300+.
Probably some of the best advice concerning oil right there. I would second the comment concerning not to extend your oil change intervals. The oil just shears down too quickly, which a bypass oil filter will not fix.

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post #7 of 18 Old 06-29-2011, 07:02 AM
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+1 with Evil Eye.

The 6.0 will shear down oil to a 30w in no time agreed. Oil intervals should not go beyond 7k regardless of what ANYONE tells you. Oil analysis through independent companies will tell you what's going on with the oil. Use their information accordingly, if you don't understand oil reports just stay at 7k intervals.

I read enough feedback to keep the OCI to 7k never to exceed 10k (emergencies do happen at the least convenient times). I run 5w40, 7k intervals and a by-pass and have been VERY happy with the resulting motor performance.


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post #8 of 18 Old 06-29-2011, 09:23 AM
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I would run a 5w40 synthetic in summer and a 5w30 in the winter in Idaho. Not a lot of options for 5w30 so I run Amsoil. It has always treated me right. Rotella T6 5w40, Mobil1, or Schaeffer 9000 5w40 are decent options. I'm not a big fan of Valvoline.
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post #9 of 18 Old 06-29-2011, 01:29 PM Thread Starter
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Do you have a number for the Syn oil Ford filters?
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post #10 of 18 Old 06-29-2011, 06:23 PM
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ive ran a few, now im running mobil delvac sythetic 5w-40 and sticking with it from here on out. Good stuff. I have a FS2500 oil filtration, no complaints.

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