Hi everyone, this is my first post, regarding a 2006 Sienna. A little over a month ago, I was told at a shop that the right tank of my radiator is leaking, but I am not losing radiator fluid and never see any on the ground (kind of redundant, sorry). My question is, will it be safe to wait until I start seeing signs myself? I have been putting quite a bit of money into this van (purchased used in 2017), lately. I will be going on the road for a couple months, as I am retiring next week. I won't be driving more than 150 - 200 miles per day that I drive, punctuated by periods of time where the van will be mostly parked. Thanks for any advice folks might feel like giving.