Huh?
Well, I dont have any profression controlled testing here but, taking a temp. reading today the temps were approx. 10degrees cooler. Drove the same way, outside temp is pretty much the same. I dunno. I wish we had some real proof…some real testing.
BTW, I used some cheap fabric softener “refill” milk carton little thing I bought for $1.** at the local Dollar General. I wonder if the more expensive fab. softeners would work better? ARGGHH, I hate variables.