I’m fact-checking a book, and have very limited car savvy. Does this passage make sense for a description of a car problem in 1958?:
As we left Oklahoma, crossed the Texas panhandle, and went into New Mexico, the car began to overheat because he had antifreeze in the radiator, not surprising since the driver was from Pittsburgh. He was not eager to stop. I suggested that we turn the heater up full blast and open the windows. The heater in a car of that era functioned in a sense as an auxiliary radiator. This technique worked and we continued across New Mexico and Arizona into southern California.
Would antifreeze in a radiator cause a car to overheat?
Thanks in advance for any insight.