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Chevy Silverado Hybrid Pickup

87 messages, Last post on Jan 06, 2009 at 10:29 AM
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| well, let me explain it to you then. How is it that the Escape (which probably gets 24 mpgs in the city on the 4 cylinder model) will get 35 in the city as a hybrid?? 24 + 10% doesn't add up to 35. If good ole Ford can do it, why can't GM?? | |
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>>How is it that the Escape (which probably gets 24 mpgs in the city on the 4 cylinder model) will get 35 in the city as a hybrid?? 24 + 10% doesn't add up to 35. If good ole Ford can do it, why can't GM?? << The displacements on the two vehicles are completely different. The Chevy has a V8. It is never going to be as efficient as a V4; it has twice the cylinders and probably more than twice the displacement. Driving the two vehicles on an EPA test stand won't help the engine size. Additionally, I have not yet read if GM is using a drive that is pure electric until a certain miles per hour, or is like the Honda IMA. The IMA will use those larger cylinders from startup. I think that Ford is using the Toyota method. |
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| that makes sense that the big V8 with its huge towing capacity would not get the same results. yes, Ford will use the Sanyo battery, and has designed their engine around the Toyota model. | |
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of the Silverado will be the fact it will generate electricity for use at construction and other remote sites. Generator engines are not regulated. I read once that those commercial Honda generators pollute as much as 4 SUVs. Having the generator as part of the truck also elminates using the resources to make a generator, lessens the weight load in the truck, and frees up space in the cargo area. |
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For those who genuinely need a large pickup, mostly construction companies, this is actually a good environmental step to have the electricity.
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Replying to: stevedebi (May 10, 2004 1:42 pm) I think the electrical side of these is very limited for propulsion purposes. I read about it somewhere, but it's nothing like the Prius/Escape type hybrids that are forced to rely on very small gas engines when the batteries are expired. While the chances of draining the batteries on a Prius/Escape will likely be slim in normal driving, it would occur very quickly on a truck that was towing or hauling a large load. So if you put a undersized gas motor on the Silverado along with full-bore hybrid technology, the downside would be it would make a terrible truck. |
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We're talking about a vehicle that gets 15 MPG, so any realistic improvement in mileage is going to look like a small number. While I agree with yoru math, you start from a very questionable assumption, Namely that the EPA alleged 15 mpg will be the REAL Mpg this big truck will obtain. Have you seen any serious road tests that produced a Real Mpg Number for the Silverado Hybrid? I have not. And tests like the 6-mile loop they did on the EScape Hybrid, driving totally unrealistically to get the highest possible MPG, are NOT serious tests. If experience with the Prius and the Honda Hybrids is any Lesson, the REAL MPG of the truck should be quite different, and less, than the EPA alleged MPG. In addition, if the truck operates in cold weather, forget about it, all the benefits of the hybrid will evaporate. BUT most important: THE IDEAL Engine for any truck or large SUV is a DIESEL, a MODERN Diesel, with its huge torque at useful low RPM. Unfortunately the big 3 charge $4000 extra for these diesels and few people drive them. I have seen a Diesel that would make a Ddge Durango get 30 MPG Highweay, vs almsot HALF that with its primitive V-8.
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Replying to: well_informed (Jun 17, 2004 11:34 am) |
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| What's being missed in all this conversation is the cumulative benefit of having hybrid engines on high volume vehicles. The collective benefit of a 10% fuel "saving" on a volume product like fullsize pickups far outweighs the offsets produced by placing hybrids on low volume relatively efficient compact vehicles. As for the diesels, the price premiums dissuade high purchase rates. | |
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