Any reason not to switch to 0w-20?

My '09 has 43000 on it and I have alwyas used Mobile 1 5W-20 every 5K miles since new, however my wifes Camry calls for 0W-20 and since my truck holds 5.5 qts and her car holds about 4.5qts it would be more convenient when stocking up on oil and using up 1/2 quarts ect. We see low 0's in the winder and temps in the high 90's generealy in summer

 

My 2011 calls for 0w-20 exclusively. I don't think it would be a problem changing it over.

 

As long as you keep the second number the same it will be fine. 0w gives better cold start protection

 

my 2012 calls for 0w 20

 

My 2011 said you can use 5w-20 if 0w-20 wasn't availible so I just use 5w-20 since its cheaper and really haven't noticed a difference since my 09 ran the 5w

Ymmv

 

0w-20 will give you better cold flow. Most engine wear occurs at startup