Engine oil recommendation

[RetroPug]

Any reason not to use something like mogul 5w50 or even mobil 1 0w40 which have better lower temp protection

Peugeot recommend 5w 40, in fact they specifically recommend Total Quartz 7000 or 9000 for the gti-6 engine at least, where 7000 is semi-synthetic and 9000 is fully-synthetic.

Total Quartz 9000 I run mine on this.

I think there was a way of getting it slightly cheaper on here with a discount code iirc.

Any good quality 5w 40 should be fine. As for using other grades, maybe if you are sure of what you are doing, but I wouldn't even bother looking into it myself unless it was for track or I lived in a particularly cold climate, and varying too much from recommended spec could cause problems I'd say.