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| Thread ID: 70313 | 2006-06-28 23:46:00 | Which uses more fuel ? | SKT174 (1319) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 467121 | 2006-06-29 11:16:00 | sorry metla, i've already done my "diesel economy" posts on another forum. some darn mechanic trying to tell us mere amateurs how things work ! LOL ;) | tweak'e (69) | ||
| 467122 | 2006-06-29 11:17:00 | Does anyone know how much does NZ trucks cost? Too bad if people wanted BMW and wanted a fuel saver type, get a modern one or hybird type. That's all I can say. Hybirds are the most fuel saving type.:D END OF STORY!!! Found some truck on the web but no info about fuel economy. |
MTLance (6768) | ||
| 467123 | 2006-06-29 11:28:00 | But what about electric heavy vehicles? I read that they are going to upgrade the electric trolley buses in Wellington. They might be more economic than diesel ones. Got any of those in Wanganui? | Andrew B (867) | ||
| 467124 | 2006-06-29 11:33:00 | But what about electric heavy vehicles? I read that they are going to upgrade the electric trolley buses in Wellington. They might be more economic than diesel ones. Got any of those in Wanganui? I heard some hybird bus from Volvo. But forgot the link. | MTLance (6768) | ||
| 467125 | 2006-06-29 11:34:00 | I heard some hybird bus from Volvo. But forgot the link.Go to google and put 'Volvo hybrid bus' as the search term | Myth (110) | ||
| 467126 | 2006-06-29 11:38:00 | Go to google and put 'Volvo hybrid bus' as the search termOk. Here www.eere.energy.gov It says saves up 35% of fuel. And here's the Volvo web about fuel saving www.volvo.com |
MTLance (6768) | ||
| 467127 | 2006-06-29 22:17:00 | ??? I'm a kid? Maybe you got it wrong. A kid don't understand about engines and all these stuffs. Gotta look at the Volvo new trucks and other companies new trucks. That all depends on your definition of kid. I wouldn't be surprised if the older members of the forum considered me a kid. Plenty of form 1 or 2 kids can spout off the same facts as have been posted here, but I see your point - just because someone can spout off a heap of facts doesn't mean they understand what they are talking about. |
Greven (91) | ||
| 467128 | 2006-06-29 23:25:00 | It is all a matter of gearing. You need to determine the rpm at a given speed in both cars and then multiply by the size of the engine. (This assumes that each motor requires the same air/fuel ratio.) In your example the fuel used would be the same. 2 litre car 4,000 rpm for 100kph = 2litre x 4,000rpm = 8,000 litres of air/fuel processed per minute. 4 litre car 2,000 rpm for 100kph = 4litre x 2,000rpm = 8,000 litres of air/fuel processed per minute. |
KiwiTT_NZ (233) | ||
| 467129 | 2006-06-29 23:49:00 | 2 litre car 4,000 rpm for 100kph = 2litre x 4,000rpm = 8,000 litres of air/fuel processed per minute. 4 litre car 2,000 rpm for 100kph = 4litre x 2,000rpm = 8,000 litres of air/fuel processed per minute. unfortunatly the 4,000 rpm motor will have double the losses ie friction on pistons, cams etc etc so it alwasy will use more fuel if all other factors are equal. also it depends on tuning, if the motor is setup for low down torue it can perform poorly at high rpm and vise versa. |
tweak'e (69) | ||
| 467130 | 2006-06-29 23:54:00 | Of course, at the end of the day, petrol costs are not the main costs of running a car, depreciation, insurance, maintenance etc cost more. | dolby digital (5073) | ||
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