Yeah, I've been watching the coolant temps. So far, so good. But it isn't summer yet. If worse comes to worst, I can make a removable section.
I avoided blocking the grille in front of the inverter, because I don't want to risk it. And the gasoline engine runs intermittently. I watch the coolant temp drop after the engine shuts off. And I think sometimes, it comes on just to maintain operating temperature.
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