Have you tried Castrol Edge 0W-30??? (I think that would be Ideal for the Winter)!
Glanza V was not designed for any 40 type oil, it was designed for 30 type such as 10W30 or 5W30 or 0W30 - depending on how cold is the winter!
Have a look at your driver's door - it says USE 10W30, every 5 000 km or 6 months!
Toyota UK never sold Sport Cars in the UK, therefore they will use a standard oil in ANY toyota CAR and that would be 10w40 as the cheapest oil!
Have you tried TRD Oil Filter???