Quote:
Originally Posted by SOM3
Notice a huge gap in performance between two cars and then read your above post again.
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The subject is engine fuel efficiency; nothing else. Notice huge gap in technology between two I6 engines built some fifteen years apart then read your above post again.
Quote:
Originally Posted by mkoesel
Generally, but keep in mind:
- Redline for the S55 is only 300 RPM lower than the S54
- EPA testing probably does not even take the engines near redline, or if it does it would be only very briefly.
- The S55 makes about 100 more horsepower than the S54.
It seems like a reasonable trade-off.
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Redline: Reports to date indicate widespread shortshifting of the S55 which would improve mpg versus redline shifting.
EPA: That's speculation but reasonable IMO.
HP: Yes, but you're not saying hp is greater factor than rpm where mpg is the subject, are you?
Some will certainly find the trade off reasonable while others will not. It is what it is.