EOT with synthetic oil ? - Ford Powerstroke Diesel Forum
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post #1 of 11 Old 05-26-2012, 05:03 AM Thread Starter
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EOT with synthetic oil ?

up until wednesday, i have always used conventional 15w40 oil in my 2007 F 350. the truck has 102,000miles. Many people tell me to switch to 5w40 synthetic, so i switch! I changed my oil to Rotella T 6 5w40, since i switched to synthetic oil, i have noticed the truck runs smoother, quieter, i got .5mpg better mileage, and my EOT is 5 degrees cooler?
have any other members noticed these benefits after switching to synthetic oil?
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post #2 of 11 Old 05-26-2012, 05:07 AM
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Yes! Synthetic oil is no myth. It has been proven many times over that it will help with all the things you mentioned. It may cost a bit more but in the long run it pays for itself no doubt. My truck has had synthetic oil since it was new (I now have 56K on the truck) and no injector problems, no turbo cooling problems, and with my EGR delete no EGR problems.

Mike
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post #3 of 11 Old 05-26-2012, 06:20 AM
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As stated above you are seeing the benefit of synthetic oil.

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post #4 of 11 Old 05-26-2012, 06:23 AM
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The next advantage you'll see is when you switch to amsoil and only have to change your oil every 10-12 months.
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post #5 of 11 Old 05-26-2012, 07:05 AM
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But tell me your amsoil doesn't shear/breakdown when it gets used in a Hydraulic (high pressure) situation. If you dont want your injectors to have issues you might want to stay with normal oil change intervals

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post #6 of 11 Old 05-26-2012, 07:12 AM
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160000+ miles not an injector problem yet. I figure that's a long lifespan of a factory injector anyway.

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post #7 of 11 Old 05-26-2012, 07:32 AM
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Quote:
Originally Posted by JayAF98 View Post
160000+ miles not an injector problem yet. I figure that's a long lifespan of a factory injector anyway.

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That is a good life span! How many miles did you do per oil change? Did you add a BY-pass small micron filter? Did you ever get your oil analyzed? I don't want it to sound like I'm flaming you but I would just like to know more info of your case.

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post #8 of 11 Old 05-26-2012, 07:45 AM
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Quote:
Originally Posted by rentstdi View Post
That is a good life span! How many miles did you do per oil change? Did you add a BY-pass small micron filter? Did you ever get your oil analyzed? I don't want it to sound like I'm flaming you but I would just like to know more info of your case.
Me too.....
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post #9 of 11 Old 05-26-2012, 08:57 AM
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I usually change the oil about every 15000. I do change the filter at the normal 7500. Everything is stock as far as the oil system. I use the oem filters from ford. If course I don't buy them from ford, cheaper on ebay. About every third change I have it analyzed.

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post #10 of 11 Old 05-26-2012, 09:00 AM
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if it's Blackstone can u post the PDF?

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