I am new to this forum. I found this forum when I googled a maintenance question for my MDX. I have 2001 MDX with 190K miles on it. Still running as champ. I noticed from past two motor oil changes that the oil level reduces. I use regular oil (not sure the weight but sure not synthetic) by my Individual mechanic in CA. I recently moved to Central NY. I am due to my oil change now and I checked the oil level this morning and it is less. Is it something to do with the weight of the oil I use now or the way I drive or the engine’s age? Do I have to change my motor oil from regular to higher mileage or to synthetic?