Yeah, got my car in July. A few weeks ago it wouldn't squirt fluid. Looked under the hood and it was blue slush. Dumped it out the next day and put in some -20 stuff. That might not be low enough for some of you, but if it gets that cold here in KY me and half the population will likely be dead.

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1985 300D, 237k.
1994 F-350, 6.9 diesel, 5 spd manual, Banks Turbo. 261k.
Sold: 1985 300CD- 267K