Anyone into Diesels?

[rewrew421]

Just wondering, big hobby of mine these days.

Feel free to post your Diesels and your mods.

[Pumaxcs]

[rideblue56]

Is that a knock at diesel prices?

If so, you get better fuel mileage out of a diesel engine, and more torque. So, the fuel price is pretty much negated.

If you're hauling with it, you'll be on the positive side, by far.

[JB323]

^agreed


diesel is the only way to go, people are just scared seeing higher prices. You dont get 18+ mpg in a gas truck and no where close to the torque & power of a powerstroke/duramax/cummins.


i have a 7.3 Powerstroke breaking in at 200k miles. My friend has a nasty duramax though all modded





--- this is my other friends (both) and there dirtymaxes.

[Phathry25]

--- this is my other friends (both) and there dirtymaxes.

There are three options for the correct usage of their, there, they're, and since the sentence isn't very descriptive, two of the options would work. You still got it wrong.

[rewrew421]

Phat who cares?

And nice trucks Dmax is we're it's at right now as far as performance. A good buddy of mine has one of the new 6.7 strokes all deleted and tuned for 460 at the wheels all stock parts! Last time I looked it had 70k miles and gets 18-20.

Mine is a 2000 7.3 full engine build havnt had a chance to put it on the dyno yet but similar builds have made around 600 on fuel only. She just ate the tranny about 3 nights ago (manual trans) if I drive it normal I can get 14mpg pretty easy 15-16 is a stretch. Compared to gas trucks that's still better! We have a fleet of fords and a few gassers and none of them come close on Milage to the diesels. (6.4s have been deleted and tuned)

Before any of you guys point fingers look at the facts, a modern diesel puts out LESS emmisions then your Honda civic, while making more power, and getting better fuel economy. I hate GM but I give them credit the dmax is a solid unit, a new lmm or lml deleted and tuned can easily get 20-24mpg, weigh in at 8000lbs, and beat a corvette in the quarter.

[yzmxer608]

I don't get the emissions thing, when they poor black smoke out (not all of them, but still).

They'd be annoying in the winter too.

[Stormz]

I don't get the emissions thing, when they poor black smoke out (not all of them, but still).

They'd be annoying in the winter too.

Aside from it taking 30 minutes to warm up, I've never had a problem with the trucks I had. Just turn the key, wait for the glow plug light to go off and it starts like a champ.

[Phathry25]

Phat who cares?

Clearly I care. Why do you always feel the need to call me out?

[Stormz]

Phat who cares?

Clearly I care. Why do you always feel the need to call me out?

You made his butt hurt.

[rewrew421]

You can tune a diesel to not smoke large bore engines may smoke that's just the nature of the beast, 2008+ diesels (on road diesels) won't smoke, they are actually filtered, and this is why they get low mpg and must be "deleted".

That said, soot is not actually bad for the environment, it's mostly carbon.

EPA is killing diesels, get rid of DPF, increase aftertreatment(urea injection), and eliminate EGR and Diesel would make a strong comeback. With today's common rail capabilitys visible smoke is rare. Those who are not familure DPF is a filter that traps the soot and when it gets "full" computer dumps fuel strait to the exhaust just before the filter is a cat that ignites the fuel generating extreme heat and burning the soot out of the filter..... Waisting fuel if you ask me.

[JB323]

dont make me tattletell on you phat be nice like the rules say.


the new dodges have that new treatment bs where you have to buy more bs for epa rules & emissions, stupid.


Honestly i think cummins inline 6 is the best diesel (sound nasty too) and since its a 6 you get better mpg. I went up to las vegas sx last year from phx on a half a tank. Ive always been a chevy guy so i like the look of 3/4 tons dmaxes/allisions 8.1's

My brother has two peterbuilts that he does trucking with, so that's some nasty power haha.

[rewrew421]

the I6 vs the V8 has little todo with fuel milage I6 makes more torque then a V8, the new Dmax's own the fuel milage war though. I would really like to see what the 6.7 stroke could do but the aftermarket isnt there for it yet, everything has to be custom built for it.

As far as the aftertreatment, i think you are talking about Urea. Dodge is actually the last manufacture of light duty trucks to actually have to use it. Ford was the first to introduce it and now GM has and as far as i know dodge only has it on there cab and chassis models.

This is NOT a negative though, people complain about another fluid to add to there diesels but they do not understand the trade off. Briefly, the EPA wants to control NOx emissions, if they are in fact harmful, i am all for it! Originally manufactures did this by either redirecting exhaust gas back into the combustion chamber or by closeing the exhaust valve early(catapillar). Why would they want todo that? Puting "dead gas" into the combustion takes up space for oxygen, thus lowering the combustion temp and producign less NOx. Sounds clever, and it may be, but it as TERRIBLE thing for a diesel engine. Noitice the tailpipes of diesels, there covered in soot, even if they dont visually emit smoke, its still there. Now emagine this being put into the combustion chamber, seeping past the rings into the crankcase speeding up the contamination of your oil. Now if you drove 3000 miles, its like you drove 5000, everything in your engine is getting sandblasted by the soot trapped in your oil. And you can only imagine as your engine wears it gets worse and worse. If a PRE-EGR engine had a life span of a million miles, a POST-EGR engine only had a life span of 500,000 IF THAT!

So what does all this have todo with aftertreatment? You can reduce the amount of EGR or eliminate it all together by injecting Urea into the exhaust. Urea is ammonia and somethin else but when the urea is heated by the exhaust it seperates and becomes raw ammonia and somethin else that is so un harmful ive forgotten what it is. The ammonia bonds with the Nitrogen oxide and creates something i cant remember exactly but i think its H20 and C02 witch are both harmless. In the long run people argue buying Urea is no cheaper then replaceing an engine twice as often but in the heavy equipment world it is!

EGR systems cause other problems, they cause valve problems, EGR valves stick and cause performance problems, they kill power and fuel economy, and most of all cut service life in half. When you change oil once a week (250 hours) usually about 54-58 quarts at a time x6 that gets expensive. We dont currently have any Tier 4 equipment but i dread the day we have no choice but to buy new machines.

[cpt_Slow]

Fuel prices graph

Sooo jealous......over 10 USD per gallon here in the UK and rising.

I guess why trucks like that are few and far between here.

[rewrew421]

Thats my beast.