any engineer will tell you and even audi admitted to me that the long life oil changes were not a good idea
at the end of the day its not even oil
so be it on your head
one of my local garages has shown me perished oil filters after being in too long
change the bloody oil people at at least 10,000 miles 5-6k to be sure
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Looking for the Holy Grail Audi ..
2018 VW Caravelle Executive T6
2010 A6-C6 3.0tdi LeMans Quattro
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