Ram1500 EcoDiesel V6 revealed!

[Renze]

You obviously haven't driven and don't understand how the EcoBoost works. I doesn't need to rev to make the torque to keep the truck going, empty or towing.

Good point, didnt think of that: the ecoboost uses a turbo to increase power and get torque at low revs, and a smaller engine to reduce throttle valve vacuum losses at low load.... Mimicking a Diesel as a Diesel has torque but no throttle valve.. Yet it misses a fair bit of compression ratio versus the Diesels, which is also a reason for thermal efficiency.

 

[tcartwri]

Oh, I'm sure it did, and really, I accounted for that. Do you think an extra 2k lbs of mass would account for a 25% drop in fuel economy? I don't. If a diesel did truly "excel in city numbers", then the numbers should be pretty close going from an F150 gasser to F250 diesel, right? That "excel" part should make up for the weight penalty, no?

Lets see. 2000 lbs heavier, 2 Liters more displacement, LT tires and rims at ~110 lbs ea, 3-4" higher in the air.... stop.

Even with the shyte emissions on these interim years of diesel, they still used much less fuel than the optional gas motors. Ask a GM guy what a 2500 series 6 L gas motor gets for mileage. Get ready with the cleanex.

 

[fordmantpw]

Lets see. 2000 lbs heavier, 2 Liters more displacement, LT tires and rims at ~110 lbs ea, 3-4" higher in the air.... stop.

Even with the shyte emissions on these interim years of diesel, they still used much less fuel than the optional gas motors. Ask a GM guy what a 2500 series 6 L gas motor gets for mileage. Get ready with the cleanex.

Actually, closer to 1500 lbs heavier.
1 L more displacement
LT tires on each vehicle (both Goodyear Wrangler ATS, but actually wider on the F150) within 10 lbs of each other
1" higher in the air - height doesn't make a hill of beans worth of difference in city driving.

Let's not exaggerate, OK?

And this ain't a Chevy, it's a Ford. I'm just comparing what I have first-hand knowledge with, not something hypothetical.

Diesel has it's place. With today's emissions, driving in the city empty is not where it's going to outshine it's gasser counterparts.

Personally, I'm hoping Ford offers an EcoBoost in the F250 when it's time for me to trade.

 

[tcartwri]

... Ford. I'm just comparing what I have first-hand knowledge with, not something hypothetical.

Here's some 'hypothetical' data for you. Have fun.

F-250 Superduty mileage

 

[fordmantpw]

Here's some 'hypothetical' data for you. Have fun.

F-250 Superduty mileage

Fuelly means nothing to me for what other drivers get. How are those vehicles driven? Does the driver have a lead foot? City or highway? Towing or empty? Do they start it and let it idle?

I don't see my truck in there, but it is right at 12.9 right now (Here it is), and I have tracked every single fill up since buying it in March 2011. I'm comparing my driving style on different vehicles, not my driving style to Joe Shmoe's. In other words, I'm comparing apples to apples, not apples to bananas.

All I'm telling you, is that in my experience and my type of (everyday) driving, diesel doesn't match gas in fuel economy. Highway? Sure, but I don't typically drive on the highway.

 

[tcartwri]

Fuelly means nothing to me for what other drivers get.

good grief. whatever.

 

[fordmantpw]

good grief. whatever.

OK, enlighten me. Explain to me just exactly how the numbers on fuelly will give me an indication of what I should expect in my type of driving? How? How does it show what my city mileage will be? It doesn't. It just shows me the average of all trucks that meet the search criteria. If you want to compare gasser to diesel overall, sure, it works great for that. If you want to compare gasser to diesel under certain conditions? Nope, since you don't know what each tankful has been used for. If you can't get that, I can't help you.

 

[tcartwri]

If you can't get that, I can't help you.

So you're an exceptional case then... gotcha. I didn't understand your uniqueness. My fault.

 

[3930dave]

Have you driven a post 2007 emissions equipped machine? My type of city driving (3 miles to take the kids to school and 3 miles back home - I work from home) is horrible for the DPF-equipped trucks.

Yes, my diesel gets worse city mileage than the gasser I had before it. Granted, I'm comparing an F250 diesel to an F150 gasser, but still, I'm reasonably sure I could get just as well with a V10 truck as I do with my 6.4L diesel in city numbers.

If my diesel didn't tow so dam well and put a smile on my face when I hook my fifth wheel to it, I'd trade it for a gasser in a heartbeat. Thankfully, I only drive 7500+/- miles a year, so fuel costs aren't that big of a deal to me.

Unless you store your truck in a continuously heated garage, with your described driving, it is spending virtually all it's life with the engine never up to temperature.

Pre-emission or not, that is really hard on any diesel, and likely part of your lousy mileage. If you haven't already, it's probably a good idea to get UOA done, as this is Severe Duty usage in terms of engine oil.

Agreed - your story is a good example of a bad application for diesels. Living in Death Valley, perhaps an exception.... :laughing:

Rgds, D.

 

[fordmantpw]

So you're an exceptional case then... gotcha. I didn't understand your uniqueness. My fault.

Precisely...that's what I've been trying to tell you! I would imagine that most F250 diesel drivers don't use their truck for chauffeuring their kids to school and back...

I know what my gas truck got for fuel economy. I know what my current truck gets. They gasser was much better. Period.