my friend has a 09 civic and the manual recommends a 5w20
But not in tropical asia. Car manufacturers here allow different viscosities. Honda brand oil is 10w-40
Your case is unique. I wouldn't pay double to use M1 0w40 over Total. When we rave about M1 0w40here, we do so being able to pay reasonable prices for it. In fact, there's a sale going on right now where we can get 5 quarts of it plus an M1 filter for $30 US. Total Quartz is an oil we can't get over here in normal channels stateside but from what I hear, it's great in Europe. I've seen some stores here import that Quartz and charge $15 for a 1 quart bottle.