Quote:
Originally Posted by Marazzito
IMO, all cylinder deactivation does is scam the EPA ratings system, it is hardly as efficient in real world driving. If you compare EPA numbers, the Tacoma still is significantly better in the city. Of course the American made vehicles have their own technology, and IMO Toyota has more efficient real world driving vehicles with out the use of cylinder deactivation. The 5.7 is more efficient than the 4.7 because of new technology. I would be willing to bet the next replacement of the 4.7 (when ever that may be) will be more powerful than the 5.3 and offer better fuel economy with out cylinder deactivation.
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LOL, my brother in law has one and as long as the gas pumps continue to be fooled by this "scam" too he's pretty happy! The advertised EPA mileage is very close to reality just as it is on the Tacoma. Seriously, why is it important to you HOW a vehicle achieves good mileage? Cylinder deactivation may not have worked well in the past but that's true of lots of things that work much better now due to newer technology allowing better design and control.
I seriously hope you are right that the replacement for the Toyota 4.7 will in the future raise the bar even more than the GMC 5.3 currently has it set at, and then I hope that Ford raises it even higher and then Nissan and then GMC and then...but for right now, it's an American company that has the most fuel efficient V8 full size pickup truck and I think that's worthy of note just as it would be if anyone else had done it.
Another little thing I like about my brother in law's GMC extra/access cab pickup is that the rear clamshell door hinge has been redesigned so the door can fold all the way back, almost parallel with the the side of the truck, great for gaining access to the back seat to load groceries in a tight parking lot. My Tacoma is narrower overall so that isn't
usually as much of a problem, but still, if GMC can make little improvements like that to their design, it would be nice to see Toyota do the same.