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2014 Ram 3500 SRW...6.4 HEMI saga

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In 2007 on my 3000 mile trip to Kansas and back, to get my B&W bed, and have it installed, I hand calculated and checked the lie-o-meter for every tank. And after the trip I hand calculated total trip. I found that the lie-o-meter only tells little white lies, and that it was close enough for me to have to never hand calculate the average again. I know its not perfect but it was close enough.

BTW, I documented the numbers in a thread here in TDR, in 07, if you want to try and find it.
 
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I initially was only looking at the 6.4L Hemi powered trucks. Really wasnt interested in the emissions crap associated with the diesel. As I speced out identical trucks down thru negotiation at various dealerships. Of course the Hemi always won out in pricing, but it wasnt as far of a gap as I initially thought.
Drove several HEMI that were 3:73 geared, knowing I would have to have 4:10 to get it to work like I needed. Dealerships ont like to order, so their incentive to make the sale is lower. hhmmm..
But still, even if I cant get as much help out of the dealership and fuel consumption will be higher vs the diesel when towing, I'll still be better off..... then I read the specs on the 6.4L.
The 6.4L Hemi in the heavy duty trucks mandates the use of PREMIUM UNLEADED.
Well, there went more of my presumed savings over the life of the truck on fuel per gallon difference.
When all in all done, for what I would get vs what it would costs... the savings over time weren't as significant as I initially thought.
 
I initially was only looking at the 6.4L Hemi powered trucks. Really wasnt interested in the emissions crap associated with the diesel. As I speced out identical trucks down thru negotiation at various dealerships. Of course the Hemi always won out in pricing, but it wasnt as far of a gap as I initially thought.
Drove several HEMI that were 3:73 geared, knowing I would have to have 4:10 to get it to work like I needed. Dealerships ont like to order, so their incentive to make the sale is lower. hhmmm..
But still, even if I cant get as much help out of the dealership and fuel consumption will be higher vs the diesel when towing, I'll still be better off..... then I read the specs on the 6.4L.
The 6.4L Hemi in the heavy duty trucks mandates the use of PREMIUM UNLEADED.
Well, there went more of my presumed savings over the life of the truck on fuel per gallon difference.
When all in all done, for what I would get vs what it would costs... the savings over time weren't as significant as I initially thought.

RAM's documents list it both ways on gas depending where you look. Many on RV.net claim 87 is just fine. Chris
 
off..... then I read the specs on the 6.4L.
The 6.4L Hemi in the heavy duty trucks mandates the use of PREMIUM UNLEADED.

If that is the case then the 6.4L Hemi would not be a cost savings at all for me. Premium Fuel is between 6 cents and 10 cents higher than winter diesel right now in my area. I have also been tracking the 2013.5 and up trucks with the SCR emissions being used on the Cummins and they seem to be getting the same fuel mileage if not higher than the Hemi engine trucks.

See this link from Cummins forum:

http://www.cumminsforum.com/forum/2013-general-discussion/593358-2013-mileage-thread.html


Jim W.
 
http://peterscars.com/inventory/4d924-2014-ram-2500-laramie
no doubt, it will run on regular unleaded. but if its tested/speced by Ram on premium, when you drop the octane, there goes hp/tq. The ECu is going to look at detonation levels and back out of the timing/fueling.

I believe if you read the owners manual it states regular. RAM web page says Premium. Which is it?????? Are they going to send everyone a corrected owners manual or just correct the web page?????

Here is a document to look at.

http://blogs.cars.com/files/2014_ram_heavy_duty_sp3.pdf

Chris
 
If I were to buy one, it would be regular gas in city empty, and premium towing or or long trips that includes grades empty or not.
 
A friend of mine has traded his 3500 Cummins (2011) in on a new 3500 SRW with a 6.4 and so far, so good. He's getting the same mileage as the cummins was (12-13, lots of town and hills) and he says for a gasser it tows like mad. I'm going to drive it soon to see how it is.
 
Colorado is one of those goofy states that has lower grade gas. Regular is 85, mid is 87, and premium is 91. NOTE I am running off memory here. I have not had to deal with gas at the pump since 2002.

My book says use 87, I feed it 87.

ETA - The book also says that for the 5.7 Hemi, 87 is acceptable, 89 is recommended...a flavor you can't get in CO unless you custom blend at the pump.
 
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I was responding to a PM, and thought I would toss this in while I am taking a little break from tax prep (UG!!!)

So far the new truck has been pretty good. The more I drive it, the more I start to like it. What I really miss is the ability for the cruise control to stay put when going up an incline. This one will drop 3-4 mph before it finally drops a gear or two to get back where I have it set, and even when off cruise, there is no such thing as mildly accelerating with gradual throttle pressure. It seems to maintain speed, then drop 2 gears and the RPMs jump from 1500 to 2800 and away we go (and there goes the EVIC fuel mileage). Just does not have that power band of the Cummins, or at least my mildly tweaked one coupled with the manual trans to accelerate without lugging in that RPM range.

There are some features that are available with these new trucks that are pretty neat, and I almost wish I had them. I had a purpose behind this truck and need to stick with it. It's a plain Jane work truck with minimal frills. Crappy part is that with all the negotiations and searching and holding to my budget..I once again spaced out other crucial items like wheel to wheel running boards, mud flaps, in bed tool box, tinted windows (the sun is brutal at 5k feet and up), seat covers (one size fits all no longer works, especially with air bags in the seats), floor mats, and so on. Maybe by the end of summer I will have that list done. There goes another $2k.

The FOBIK key/fob. That I hate. A big bulky FOB that in my line of work is begging to get broken. The sick part is, that to get the standard key with the transponder - it's $30 for the key, and anywhere from $35 - $50 (depending on the dealership) to program it. Can't be done without their programmer connected to the truck like you can on the older trucks. I would almost prefer the keyless system and have the RFID chip implanted into my forearm. Gone are the days of a $3 replacement key at the hardware store.

FWIW - somebody had asked about a front axle disconnect - pretty sure I don't have it.

Off Roading...I had to make a crossing through some very soft and wet grassland next to a runway. Sunk in to the rims on the wheels, and forward momentum stopped (I started to feel it sliding around a tad in the rear and pushing the front. One of those "Don't stop, just keep your speed and direction and hope you make it to the end"). Pushed it into 4wd, dropped into reverse and backed right back out with no problem. Tired a different route, and had to go back into 4wd, this time I stayed in it until I was clear. I could have done that to begin with, but we are still in the testing phase. First time I have had to use the 4wd - as it is, I am one that will only use it when it is a must or safety is an issue. Not a hard core test, but a real life example of conditions that I will have to deal with. I'm pleased with the results considering they are OEM all season tires. The coworkers were all set to start gloating over having to tow a Dodge out of a mud puddle when they saw me dig in. Maybe next time, maybe I will be the one gloating for towing them out.
 
Thanks for the update. Your comment on the cruise not holding sorta hit home. One of the great things with the Cummins was driving for hours and hours on cruise and just watching the boost gauge respond to hills, no downshift, no drama. How much gear/tools are you carrying? Do you think 4.10s would help much?
 
I've got probably 200# in the bed now. Not that much really, and I only weigh 165.

I would think that the 4:10 axles, and lower altitude would help quite a bit. I have no idea how long the learning curve is for the transmission, I only have >800 miles on it now. IIRC all things get better with a little age and mileage on gas engines. My issue may go away after a few more months.
 
Thanks for the update. Your comment on the cruise not holding sorta hit home. One of the great things with the Cummins was driving for hours and hours on cruise and just watching the boost gauge respond to hills, no downshift, no drama. How much gear/tools are you carrying? Do you think 4.10s would help much?

I've got probably 200# in the bed now. Not that much really, and I only weigh 165.

I would think that the 4:10 axles, and lower altitude would help quite a bit. I have no idea how long the learning curve is for the transmission, I only have >800 miles on it now. IIRC all things get better with a little age and mileage on gas engines. My issue may go away after a few more months.

I will start out by admitting I have limited knowledge about the gas powered Rams. Do they utilize an APPS, or a TPS? I'm assuming they do utilize some type of drive by wire feature? I am mostly thinking out loud, but wonder if that device could be manipulated or trained as far as sensitivity, is there a potentiometer that could possibly be adjusted?

I mention this, because I was able to adjust my APPS from Timbo on my 03 for proper shift points, and in doing so noticed it also affected how my CC acted. Glad your new truck is working out for you, I'm sure a few more months will enlighten you to the vehicles features and quirks, have fun!
 
JJPage sometime in late 2001.5's or early 2002's they switch from a vacuum CC to a ECM based CC. My May 2001 build still has the vacuum CC. So if ECM CC was carried over to the 2003 then the APPS adjustment should not really effect the CC???? Chris
 
It amazed me, the affect the APPS had on different systems within my truck..it also cured my 1-2 shuttle shifting, still have the new governor press solenoid and sensor setting on my workbench. Sticks, know this is off subject, I'll quit now.
 
JJPage - don't worry about derail. Brainstorming is fun. I really have not poked around the truck and engine compartment yet, for all I know I am brake by wire. I do know I have a steering shaft, so at least that is not electrical yet.

The throttle pedal does have a sensor on it, so I am pretty sure it's drive by wire. Top of the engine has a giant plastic helmet so I don't know if there is any cable linkage to the throttle body.

It was strongly recommended by a couple of dealerships that if the truck was going to be used for a lot of towing, that one should go with the 4:10 axles to get the most out of the engine torque. 3:73 axles are probably ideal for the Cummins platform unless you were going to be towing at max GCVWR frequently.

What kind of has me curious is with all the vehicles out there (gas burners) coming out with turbo charged engines, that they have not done this for the HD trucks. Turbos are not just for speed. More HP = More TQ.

No, I am not going to BOMB this truck. Thought about it, and there is quite the community of Hemi truck owners that have it down to a science. I am not going there.
 
EVIC Mileage to date 15.2. Hand calc 14.665 - 839.6 miles

Last fueling came in at 13.734mpg, 12:29 hours of engine operation - avg speed 30.8mph. Lot of rush hour traffic and errand running. Current EVIC mileage on this tank is holding at 14.2 (now at 945 miles). I suspect that it will be the same end result as the last fueling since I don't see a change in my commute this week. Probably safe to say that this is not the ideal vehicle for a grocery getter and errand runner.

I may do one tank with the Tow/Haul mode turned on, and the TCS turned off - I'm given to understand that the TCS is a power reducer at low end. The new fun button? I'll wager that the mileage will drop with the Tow/Haul mode though, since it will keep the torque converter locked up and reduce coasting. Is the fuel offset worth the cost of brake pads and rotors?

As noted by some other new truck owners - the hood is huge and what I am guessing as a different slope, and starting height, makes it hard to guess where the front end is when pulling up to something. The Crew Cab/Long Bed combination makes it a joy to back up as well (sarcasum), never mind the HUGE turning radius, which I did not think could be worse than my '02. At least I am used to north 40 parking at shopping centers.

Working on fabricating some wheel to wheel running boards and a headache rack so I can get a construction truck beacon mounted. Not sticking a magnet on my roof.

More to come.
 
The Crew Cab/Long Bed combination makes it a joy to back up as well (sarcasm)...
Do you have a rear backup camera in the tailgate and the rear park assist?

Those sure help on my truck.

I wish I had park assist in the front too.

John L.
 
Do you have a rear backup camera in the tailgate and the rear park assist?

Those sure help on my truck.

I wish I had park assist in the front too.

John L.

John, that would be cool. Put it in drive and it would give you 15-20 seconds of a forward view!!!! Does RAM take suggestions? Chris
 
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