I Thank You. 🙂
Maybe the S Max design is particularly prone to this <shrug> – anyway 3 months post filter change for me and all is still well.
No. I randomly fill up at Asda or a fancy place and I never get issues. Car is a little smoother on Total, and it’s a fair bit nicer on ultimate/vpower etc, but it always works fine on Asda.
Mixing it definitely helps, and is key – I don’t think a tank of Tesco here or there hurts too much.
I’m betting my S Max had a previous life as a cab, and was filled as cheaply as possible and never serviced. The ‘after sales’ from where I bought it lead my to be more or less sure the pre delivery service was entirely fabricated.