Ok to go with 10W40 oil in my Diesel Yaris?

[Donmanolo]

Just resuscitating this thread because I'm a silly noob , apologies in advance

I actually have the exact same question as the original poster , I also live in Italy, and I have a 2004 Yaris 1.4 d4d .

I'm due to change my oil next month meaning that it might last me until may or even June this year, by which time it should hopefully be lovely and sunny and around 28-30°C during the daytime.

That's why , according to the table on my user manual I feel inclined to go for a 10w-30 oil, but I'm just puzzled as to why a 5w-30 should have such a different max temperature range ( it appears to be good only up to about 10°C ) .

Could there be a mistake in the manual ?

Sent from my BV7000 PRO using Tapatalk