2008 Ridgeline RTS in Billet Silver Metallic
I'm curious how those fluids were 'tested'? The thing about doing preventative maintenance is doing things on a schedule and not waiting until something breaks. While the dealer probably makes most of their money from the shop and undeniably suggests over-maintaining your vehicle, you can err on the opposite side too and under-maintain it. You have to find the balance you're comfy with. I think most of us here more or less go along with the MM schedule.First let me state I have no issue with preforming maintenance as needed, but not sure about y'all, but I quit trusting "dealers" service advisors several vehicles ago. Especially @$125/hr. (that's very high here in MN). Anyway I had to take my '17 RTL-T (45K mi.) in for the hood latch recall thingy and they hit me up with most of these charges too. So I took it to my regular shop I've used for 15+ yrs., fully willing to pay him for each of these services, and was advised to do none of them. Each fluid was inspected and tested and all were good. They could've easily said I needed each service, but nope. Said come back in a year and will test again. They've never screwed me over yet (unless they were really good at it 😉), so I guess I trust them.
Brake fluid, being hygroscopic, absorbs moisture from the air. Over time, internal components can rust/corrode and cause issues with the braking system. So a routine service every 3 years keeps the corrosion at bay. At 45k miles in normal service, your MM should have called out the transmission fluid change... along with the transfer assembly and rear diff service. I'm not aware of any kind of test on these fluids that can be done short of sampling them and sending them into a lab for analysis... which I sorta doubt was done here.
So your distrust of dealer suggested services should be filtered through the lens of reality too. Just sayin'.