Hi, One of the C-Max's design failings is the lack of a dip-stick to check trans fluid level. This has lead to a lot of owners & mechanics to wrongly assume that it is a sealed unit. Happened to me at a large national chain of tire/car repair shop. I quickly dropped them from my list forever. The trans has two plugs on the side, one fill-one drain, visible from underneath. [Google exact spots & how to access]. The trans fluid level should be checked at every oil change [owner's manual], but most if not all oil change shops will not do it unless you request it because it is not as easy as using a dip stick. Because of the way level is checked, it is hard to determine if your 2 ounces low or a gallon. In practice checking is more refilling than checking level. The C-Max came from the factory with a regular oil-based fluid [NOT SYNTHETIC] resulting with a fluid that is subject to heat-related losses just like standard motor oil. At your mileage, if previous owner did not have fluid checked on a regular basis, it is very highly likely level is low. If it was me, at your mileage, I would drain & refill with new. Did mine at 100k. Hope this helps, don't believe it will hurt. Thanks for the read.