Winter is Coming
Time to think about winterizing your Bolt.
A good Tech Tip WINTERIZING YOUR TRUCK including a link back to the Forums for additional tips.
Just a thought, did you flush out the block before putting in the new rad? I just did this a couple days ago on my 235. Was amazed at how much junk came out of the rear end of the block. I'm told lots of crud collects around the number six cylinder.