I can't think of a region in the entire world where 10-30 doesn't exist. Unless you live in the center if Death Valley or the depths of Antarctica. and never leave, 10-30 is going to be on the shelf.
If your 'region' is Antarctica remember to have fresh knobby tires and dress warmly.
If you are in the Southern Hemisphere you are approaching Summer so call your local Honda Shop and get the word straight from the horse's mouth.
Need more details for any better answer.
As Honda recommends 10W30 for many of its products as the heavier grade isn't available in your area as you can have the recommended oil shipped to you for a nominal fee as you can use 5w30 as a substitute.
You know that the year is 2014, right?
You can order anything you want online and have it shipped to where you live for a nominal fee within a few days.
That includes oil:
http://www.amsoil.com/shop/by-product/mo...
5W-30. The 10W is probably not available because it is considered a summer oil.
Do you understand what those numbers mean, dude? Think about it. Oils are for temperature ranges. Since you don't say, we gotta guess. I'm guessing 40 degrees below zero. Seems a little heavy for such a low temperature.
15w40? you havent told us what is avaliable in your area.
