A friend of mine has a 2007 Honda Accord and I check her oil for her. It specifies 5W-20 in the manual. I presume that Mobil 1 0W-30 will work fine for keeping it up to level. She gets the oil changes down in El Monte at Bob & Steves. Any thoughts? I have some Mobil 1 0W-30 in my stash right now.