highdesertranger
R.I.P HDR
- Joined
- Apr 4, 2012
- Messages
- 22,892
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- 87
couple of points nothing is 100% efficient. in fact most gasoline engines are only in the range of 25% efficiency. plus that formula is not taking into consideration the load on the engine from the AC and of course the alternator running the fans. the AC fans are pretty high amp loads. highdesertranger