During my intercooler research I discovered that although the 2006/2007 Cadillac STS-V had a intercooler coolant expansion/overflow reservoir, the 2008/2009 STS-V just has a tube that drains to in front of the battery. Looking at the system, I suspect that this is because the expansion/overflow is not really needed. I wanted one though, so I reached out to ebay and picked one up.
This is a photo of the new overflow installed; it is the white tank to the left. The reservoir bolted right in of course, as it is shaped to fit in that spot. The tube was tied off to a support, so I disconnected it, plugged it into the reservoir, and it seems set.
The reservoir is vented to atmosphere, so it is not pressurized.
Started my Friday morning by washing the STS-V with the 2-bucket method, car shampoo, and a microfiber towel for scrub, then microfiber towels for drying. In the 2-bucket method one bucket is used for clean water/soap, the other bucket is used for dirty water and wringing. So dip the scrub sponge or towel in the clean soap/water, scrub the car, then wash it off and wring it out over the dirty water bucket, repeat.
If I get out by 7 am the sun is not over the house yet and there is time to wash and dry.
I love Cadillac hats anyway, but I don’t have one that I keep in the V. Clearly I need to change that.
With the nicely clean STS-V I needed to drop by Lowe’s to pickup a fan my Wife had ordered, then grab breakfast, and head to my day. Nice summer morning for Texas at 82F, so I put the sunroof open, the windows down, and enjoyed the morning. By the time I arrived at destination my hair was uniformly disheveled in a fairly comical way, straight up on one side and randomly placed everywhere else.
No, I didn’t grab a photo. Yes, I’ll be adding a car hat.