Civic Diesel v. Toyota Prius for ultimate MPG
#21
Re: Civic Diesel v. Toyota Prius for ultimate MPG
I notice Popular Mechanics seems very pro-diesel and did a report on the VW Polo:
Another manual transmission auto body part vehicle being compared to the automatic Prius.
Popular Mechanics also likes the Jetta diesel:
(Both photos come from Popular Mechanics web site.)
I notice these Popular Mechanics high mileage claims occur on the highway and not from the EPA test protocols. Any idea about why that may be the case?
One of the reasons I prefer the EPA test protocols is all vehicles follow the same driving profile in well defined, standard conditions. It is a vehicle test that can be reproduced by anyone.
Bob Wilson
Another manual transmission auto body part vehicle being compared to the automatic Prius.
Popular Mechanics also likes the Jetta diesel:
(Both photos come from Popular Mechanics web site.)
I notice these Popular Mechanics high mileage claims occur on the highway and not from the EPA test protocols. Any idea about why that may be the case?
One of the reasons I prefer the EPA test protocols is all vehicles follow the same driving profile in well defined, standard conditions. It is a vehicle test that can be reproduced by anyone.
Bob Wilson
#22
Re: Civic Diesel v. Toyota Prius for ultimate MPG
Hi,
My question was rhetorical since the EPA tests are well defined at their web site, http://www.fueleconomy.gov.
Over time, I've noticed diesel advocates make sure their 'tests' includes these key features:
Bob Wilson
My question was rhetorical since the EPA tests are well defined at their web site, http://www.fueleconomy.gov.
Over time, I've noticed diesel advocates make sure their 'tests' includes these key features:
- diesel tests use manual transmission vs. hybrid automatics
- diesel tests at speeds of at least 75 mph (not using an HCH)
- diesel tests in cold weather, the closer to freezing the better (and no radiator block on the hybrid)
- high-speed transmission lock-up - in theory a mechanical brake on MG1 could convert the transmission into a fixed gear unit at high speeds. This would eliminate the MG1-MG2 energy flow needed to balanced the engine torque.
- radiator block - an automatic system that blocks the front air inlet to reduce drag and preserve heat, especially in cold weather.
Bob Wilson
#23
Re: Civic Diesel v. Toyota Prius for ultimate MPG
Hi,
My question was rhetorical since the EPA tests are well defined at their web site, fueleconomy.gov
Over time, I've noticed diesel advocates make sure their 'tests' includes these key features:
Bob Wilson
My question was rhetorical since the EPA tests are well defined at their web site, fueleconomy.gov
Over time, I've noticed diesel advocates make sure their 'tests' includes these key features:
- diesel tests use manual transmission vs. hybrid automatics
- diesel tests at speeds of at least 75 mph (not using an HCH)
- diesel tests in cold weather, the closer to freezing the better (and no radiator block on the hybrid)
- high-speed transmission lock-up - in theory a mechanical brake on MG1 could convert the transmission into a fixed gear unit at high speeds. This would eliminate the MG1-MG2 energy flow needed to balanced the engine torque.
- radiator block - an automatic system that blocks the front air inlet to reduce drag and preserve heat, especially in cold weather.
Bob Wilson
Used cars for sale - Motorcycles for sale
Last edited by steveb123; 07-29-2011 at 02:48 AM.
#24
Re: Civic Diesel v. Toyota Prius for ultimate MPG
I'm excited about the Volvo V60 Diesel PHEV that delivers the best of both worlds.
http://www.gizmag.com/volvo-v60-plug...-hybrid/17940/
http://www.gizmag.com/volvo-v60-plug...-hybrid/17940/
#25
Re: Civic Diesel v. Toyota Prius for ultimate MPG
Petrol and Diesel prices increasing day by day so definitely hybrid cars will do better and nobody can deny that Prius is a good car but old one(2010) model was better than new.
Cheap cars | Bikes for sale
Cheap cars | Bikes for sale
#26
Re: Civic Diesel v. Toyota Prius for ultimate MPG
Hydrogen from water being the main source of fuel supply in these cars, runs the internal combustion engine in these cars or they are powered by electric hydrogen fuel cells.
=======
Read more: Advantages Of Hydrogen Cars
=======
Read more: Advantages Of Hydrogen Cars
Thread
Topic Starter
Forum
Replies
Last Post
Jason
Hybrid & Related News
0
04-05-2005 01:38 PM