Switch engine oil viscosity winter vs summer, yes or no?

[neva4self]

Just curious if any FX owners out there change there engine oil from 5w30 in the winter to 10w30 in the summer to go with the principle of higher viscosity in the summer? From reading through the threads it seems like most run 5w30 all year round but I'm wondering if switching back and forth would be beneficial.

 

[GEE50FX]

I Use the same year round 5W30 Mobil 1

 

[Infinitifxowner]

Me too.

 

[Dracula]

unless u live in Alaska or northern russia stick to oe specs

 

[jdTrader]

stick with what the manual says.

 

[StuLax18]

These charts always vary a bit, but as you can see 5w30 covers a good bit of temp range.

 

[RAGTPZ]

I use 0W40 year round, but would use 5W30 otherwise if that was not an option.