Yeah the stock locations of the breathers are in better locations than most trucks. Even the airbox is routed pretty safely and as high up as possible under the hood. I've had no issues with all the water crossings I've done. But then again I don't ever do water crossings unless I'm with larger trucks that go through first and I see that the bottom is hard and there's no chance of getting stuck. As long as you're moving forward and don't switch gears while you're in the water you'll be fine. But I'm not ever going to take that chance with this car as it's my DD with a full interior with a warranty - I don't need to get stuck in water.
But in saying, I've had water up over the hood before
This past week I've been doing a bit of prep on the SX4 for the trip inbetween painting the trailer. Valvoline synthetics in everything. 5w30 in the engine, GL-4 in the tranny and GL-5 in the transfer and rear diff. This is the third time I've replaced the tranny and transfer case fluid and the 4th time I've done the rear diff and the vehicle only has 90,000km. I did it last time (I'll have to check my records to be sure) I'm pretty sure about 60,000km and all the fluids still looked brand new. So far I'm really really liking the Valvoline synthetic GL-4 in the tranny. This stuff is like butter even in below zero temps. Much smoother than the redline fluid I used before. I'll do one more oil change before the trip at the end of May.
All that's left on the car is to finish bolting my light bar up to my roof rack, rewire my CB (my coax cable didn't make it through the winter - wire cracked and got exposed to water/salt), and most importablty - entirely new brakes. I have drilled and slotted rotors, braided stainless lines, high-temp fluid and ceramic pads. So if i can get one more full day in on working on the car she'll be ready for the trip.
The trailer is pretty much road-worthy and just needs some fine touches before it's complete as well. Things are starting to come together! I'll try to get some pictures if the sun EVER decides to come out in Ontario. I hoping to get one local shake-down camping trip in before the big trip just to iron out any small things as I find them.