I just bought this high-ish mile Nissan and have been going over it. I had purchased a couple quarts of Honda-labeled MTF last winter to flush our Fit, but it was totalled before I had the chance. I see both are gl-4 rated, but slightly different weights. I'm sure there are special seasonings and flavorings between the two companies fluids, but I wouldn't think there would be a huge incompatibility issue.