Originally Posted by marcv
My Navigator does not have the tow package. I was thinking about adding a better transmission and oil cooler, any advice for that? Is that really needed?
On the way up, because of the traffic on that day, I saw a lot of cars on the side of the street, mostly related with overreating (I believe). My car temperature didn't move at all, always on the middle, but, not sure if that reflect the temperature of the transmission and oil.
I agree, installing a transmission cooler would be a great idea. Also, I believe a Scangauge
can be programmed to display transmission temperature for your vehicle. I have one, it displays Trans Temp on our MH plus a lot more.
I'd also follow the "severe service" recommendations for maintenance on your Navigator, as you are stressing all the components a lot more when towing in the Cascades.