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Message: <blockquote data-quote="Richard L" data-source="post: 811542" data-attributes="member: 52972">Caymen,I'm not sure where you got your info about Mobil-1, but I would doubt that the manufactures of luxury and performance automobiles would risk their reputation using Mobil-1 in ther new vehicles if there were even the slightest question that it would not last for the extended period of time.  Filter technology has come a long way in the past 10 years and the new generation of quality oil filters will stand up to the extended change intervals of synthetic oils.As to what Bill Barber said... I agree that you should not push the limits of the oil, and that is why I recommended changing the oil every 10K-12k miles.  Even though Mercedes Benz says 13K miles on my car, I changed it at 10K miles.  It's just nice to know that if you get busy and don't have time to get the oil changed, that the oil has a nice safety margin....Also, 10K miles is a nice round number to remember when yoy changed the oil last time, and you don't have to start counting on your fingers and toes to figure out when you are due for your next oil change..<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick Out Tongue    :p" loading="lazy" data-shortname=":p" /><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick Out Tongue    :p" loading="lazy" data-shortname=":p" />...Rich</blockquote>

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