RH77 -
I'm not a car dude, but if your fan is coming on a lot, then I think you need to remove some of the grill blocking. The amperage load of the fan is defeating the purpose of the MPG gain anyway, right? What's the fuse rating of your fan as compared to your A/C? Does your fan come on when your A/C is on?
When I am being diligent, I modify my grill block strategies based on the weather. It sounds like Teggy needs a "winter look" and a "summer look".
I have a manual fan radiator switch, and I am turning it on when I hit traffic jams. My car automatically turns on the fan at 220 degrees F and off at 210 degrees F, but I usually turn on the fan myself at 211+ degrees F and turn it off at 191 degrees F.
CarloSW2
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