Top 25 High MPG ICE/Diesels (any Prius Killers?)

A SI cycle has a little positive contribution on the fact that pressure spikes very quickly when mixture ignites, while diesel is still releasing energy (injection) during expansion...

 

My post was not in reference to you. I also think that epa should give mpg estimates that one would expect to get. I also think they should list a cost per mile given average fuel price.
My diesel was a 93 7.3l turbo, my v10 is a 2006 produced after the spark plug issues were fixed. both have 4.10 gears but the diesel had 35" tires, the diesel was 5 speed, and the v10 5 speed auto. I run the tires at max rated psi and only use it to haul stuff. my 06 v10 only has 30k on it. it runs the same as the day I got it new.

I find it intresting that my diesel could get decent mpg in most driving conditions. but with our large fifth wheel hwy would drop to 10 on freeway, where the v10 gets 12 on the same. empty and around town or hunting the diesel was good, but I guess my trailer was to heavy. also the power of the diesel is in a small rpm range and shifting all the time was a hastle. some will probably say the diesel may of had somthing wrong with it, but it didn't. I drove that truck to 270K the engine was rebuilt, new turbo, rebuilt trans, great truck until we got our larger fifth wheel.

 

There is over ten years of improvements between the two. Large tires generally increase the fuel sucking, but they might have improved your final ratio for unladen driving.

 

Yep, 12% higher energy content sounds about right

 

Who is 'the one' ? Me or you ?

 

A survey of drivers with enough data points to be statistically relevant. Which is where the diesels get 18% higher than EPA label mpg comes from.

 

why Me or You, how about fuelly.com as a reference.

 

You earlier said

Thus I asked who is the one.

As for fuelly, do you really want a self-selected, non standardized, unverified group of inadequate statistical power as your best answer ?? The car companies are going to LOVE you.

I'll take the EPA anyday, blemishes and all. And please note that EPA does not come anywhere near my fuel economy. Obviously Fuelly does not either.

 

The point isn't to use fuelly or some other site, but adjust the EPA so, if not closer to real world, that the average discrepancy between real world and test numbers is the same for gasoline, hybrids, EVs, and diesels.

 

You want a constant fudge factor. That would be nice, but I'm willing to bet test conditions skew the results.

 

There is already a fudge factor. Why not use different ones for different fuels? It won't change the test results for CAFE, but will give consumers a better picture of what the cars will return for them. How would hybrid sales be if their numbers were underrated compared to gasoline?

 

Because I doubt that a constant fudge factor for any particular fuel can be found that works across different testing conditions.

 

Love that site

Also note the 'best' diesel car is over a decade old (!!!) Owners in the Netherlands had payed roadtax for years before the government rewarded fuelefficient cars by not charging roadtax (which btw ends dec. 2013 )

The 5th is 2 decades old and is featured in a commercial (debadged, so I can't substantiate my claim) as being a gasguzzler... In reality the only reason it has to fuel up more often (if at all...) is the smaller tank...