This week, I put about 1100 miles on an old Pete with a Cat under the hood. Our bulk tanks are outdoors, of course. The trucks, however, are indoors overnight. Our fleet of about 15 trucks hasn't had a single problem with ambient temps as low as about -9. I have seen more trucks on the side of I-39 with hoods open this week than prior weeks. I'm outside Dekalb, Il. Where in Illinois are you, salesrep?