Forum Discussion
RCMAN46
Feb 03, 2015Explorer
rjstractor wrote:
It should be noted that the two engines were not rated at the same horsepower, IIRC the 6.2 has 420 and the Eco has 380. It seems as though they were pretty evenly matched although the 6.2 with the 8 speed seemed to be constantly shifting. That would make me crazy.
That is the whole idea behind the 8 speed and there is a 10 speed out there.
A transmission that has many close ratios will allow more gear shifting to keep the engine rpm in it's max power range. Also allows the use of tall rear end ratios which will give better economy at light loads.
Possibly one reason the GM did better on fuel.
If you do not want gear changing we can go back to the old 3 speed transmissions of the 60's and 70's.
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