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Old 10-30-2012, 12:40 PM   #148
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Originally Posted by 2012sel View Post
My recommendation is to change the oil sooner with conventional. Conventional @ 3,000, Blend @ 5,000 and Full Synthetic @ 7,500 to 10,000.
Originally Posted by suss6052 View Post
I wouldn't recommend using conventional oil in this engine unless you're planning on changing it every 3000 miles or less, even the motorcraft semi-synthetic 5w20 is generally considered better than this, but if you want to use conventional oil make sure it meets the requirements listed by Ford, or any issues you have with the engine due to oiling won't be covered by the warranty.
This is all way too conservative, backed up by hard data. I ran plain old Pennzoil conventional for 5k miles, ran a Blackstone report and it had plenty of life in it. Could've run it to 7k to 8k miles. I have MC Synth Blend now and plan to run it to 8k.

Another poster said he ran a Blackstone report on his factory fill at 10k miles and it was not completely worn out yet.
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