Quote:
Originally Posted by PaleMelanesian
Ah, with an automatic things are different. As you found, avoiding a downshift is the first priority. Once you've satisfied that, then look at the highest engine load you can sustain. It won't be as high as you can do on a manual, the car won't let you do that.
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OK, then I guess my previous strategy is probably the best then; approach the hill at "best mpg speed", then when it downshifts, adjust RPM to best BSFC speed & hold until it can handle top gear again. Guess I need to study the MAP so I will know when that is.... I guess MAP would be my best indicator, huh? I imagine it somehow still uses vacuum as at least one parameter for the "shift decision".
I wonder if it would be of any use to fool around doing "A-B-A" testing to see where my best MPG speed is in THIRD gear, then use that when climbing a hill too steep for 4th (OD)? Maybe do those test both on the flat AND on the hill???