Hmm
I was thinking that the resistors would keep the total power used pretty constant no matter what speed you're on , but that assumption is obviously not right. It looks like I will be saving quite a bit just by being able to run low almost all the time.
I understand what you are saying about the percentage savings being higher at low speed, but the power consumption is already so low it isn't really worth upgrading.
It looks like I am already at the knee in the cost effectiveness curve. I'll just replace the rest of the Instrument lights with LEDs and I'll be in good shape.
If I eventually get the AC working, that insulation should gain me some MPG in the summer too. The compressor and blower both will have a lot less work to do.
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