Why would you stop at 10k miles? If you are reaching the one year anniversary of the oil, I can understand, but if you are not close to 2%, I'd keep going.

15k miles and one year of use happen at about the same time for my '95 E300, that's why I use that mark.

__________________
Respectfully,
/s/
M. Dillon
'87 124.193 (300TD) "White Whale", ~392k miles, 3.5l IP fitted
'95 124.131 (E300) "Sapphire", 380k miles
'73 Balboa 20 "Sanctification"
Charleston SC