Interesting thoughts, and with the Cupra being my 1st vehicle with Start/Stop, it's something that I also wonder whether it's worth it. I'll probably do the disable thing once I get the other issues sorted.

Re the increased oil changes - the old man used to do it as well, but he would do the filter only every 2nd change - the reasoning being that as the filter does it's job, it gets more efficient at the smaller particles because those holes clog up. Probably more applicable to the older filters when he was a mechanic (60 years ago) but not so much now.

I'll certainly be doing more frequent oil changes, but I also don't drive the car anywhere near 15,000km/yr. I'll be lucky to do 10,000