Long life servicing and dpf issues

My skoda octavia 1.6 cr was originally set to long life servicing but as I use it as a taxi with a fair bit of stop start driving and the odd long motorway run I have decided to revert to 9000 mile service intervals

I think this would cut down on issue with dpf issues

I use quantum long life 3 at £15.75 plus vat a gallon

It may be A combination long life servicing ant the incorrect be spec oil that causes dpf issues