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Old 06-12-2009, 08:26 AM   #11 (permalink)
semtex
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Quote:
Originally Posted by AK370Z View Post
As you can see, they want you to wait at least 3,000 miles (I did around 3800. Semtex, wstar I believe did the same 4-5K miles). Even though few will say that the rings will seal properly within 20 miles of driving, but some still believe you should use factory oil to seal the rings properly and drive 3-5K miles. But there were members who changed/switched to synthetic within 1200 miles (if that makes you feel better). I am still an old school follower who follows everything by book.


The rationale for using conventional oil for at least 3000 miles is to allow all your piston rings to seal properly. If your rings do not seal properly, you will end up with oil blowback. A lot of people will argue that waiting 3000 miles isn't necessary with the tolerances built into modern engines, but I prefer to play it safe. Why take an unnecessary risk?
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