Lower soot, higher mpg.

[Han solo]

Morning all,
Not sure if this has been brought up before, but I thought I'd share my findings.

So, I usually use cheapo supermarket diesel and occasionally run some miller ecoplus cleaner through, just to keep things clean, but recently my local costco has opened up a petrol station, so I thought I'd give it a go.
It's about 10p cheaper than sainsburys for premium diesel which always gives my car a bit of pep and much smoother running.
Anyway, been running on it for a few months now, and I've noticed my mpg has been creeping up, so I did a bit of investigating, generally my dpf regens about twice per tank and the rate of soot is fairly steady (mobile app)
On the new fuel the soot production is about half and the dpf only regens maybe once per tank, so obviously using less fuel.
Just thought I'd share this as I've always thought of premium fuel as snake oil, and a waste of money.
Have a great day,

Paul.