Quote:
Originally Posted by LMC
It's interesting that the 5.7 is EPA-rated slightly better than the 4.7 for fuel economy. 5.7 V-8 at 16/20 versus 4.7 at 15/18. It will be interesting to see the difference in real-world fuel economy.
Consider the smaller/less-powerful engine that has to work harder versus the larger/more-powerful engine that can just loaf along at partial throttle settings to get identical performance in a given vehicle. I'm sure that the 5.7 will use more fuel if all those frisky ponies are called on to work hard...
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Those are if you granny the throttle...With the powerful 5.7L, people are gonna be flooring it a lot, and decreasing gas mileage...I picked up a Scangauge (
ScanGaugeII - Scan Tool + Digital Gauges + Trip Computers) for my Titan, and it really helps me control my mileage..It gives you real-time mpg, and a ton of other info...For instance, I've found my Titan gets slightly better mpg when I'm cruising at 75mph as opposed to 65mph.