I believe you should also change your oil after using techron as it might thin the oil out a bit with its detergents..
Not sure, but I think thats what I have read before somewhere on this site.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.