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2018 2500 Denali w/ Duramax Questions

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2018 2500 Denali w/ Duramax Questions

Old 11-30-2018, 04:55 AM
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Default 2018 2500 Denali w/ Duramax Questions

SO I recently traded a 2015 CC F-150 Lariat with Ecoboost in for a 2018 Denali Crew cab. This is the first diesel I have owned and drive short distances to work. I traded early due to the motor about to require a second set of bearings in less than 54K miles. I got a service plan and warranty for 120K miles and have a few questions. First, why does GM not have proximity locks and coded door locks on truck this expensive? Second, can you get additional cup holders for the console? Third, can someone explain to me why this truck rides smoother and quieter than the F-150? I had a leveling kit on the F-150 and the 4x4 (not FX4 shocks) and BFG KO2 tires.. So far I am very impressed with how quiet it is. I also noted that pulling the next boat I want will be much easier with this truck than the f-150 which fuel economy tanked when towing.
I also have a question as to what the best all terrain tire will be for this truck as I like to hunt at Fort Stewart and the trails there can be a little muddy.

Sorry for the rant. It's the first GM product I have owned. So far other than re-learning to get the key out, I have been very pleased.
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Old 11-30-2018, 05:10 AM
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Originally Posted by TreyD View Post
SO I recently traded a 2015 CC F-150 First, why does GM not have proximity locks and coded door locks on truck this expensive? Second, can you get additional cup holders for the console? Third, can someone explain to me why this truck rides smoother and quieter than the F-150?
Not sure why, maybe theres a gm design engineer on here that can answer. Not sure about the cup holders either. It prolly rides better because it has a 1200lb engine in the front with a heavy duty suspension designed for the weight?

I would take no proximity locks over a an engine that has already worn out two sets of bearings........

Duramax is a superior product to anything ford offers, Ive had multiple trucks with over 300,000 miles, current duramax has 250k and still going strong.
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Old 11-30-2018, 07:16 AM
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About 8? years ago GM spent a lot of money and effort to make their trucks quieter inside and from all accounts, they did an exceptional job. My old 2002 duramax is not what I'd call quiet - inside or out.

The prox / keyless stuff will be on the '20 GM HD trucks. It is already on the '19 1/2 tons. Not sure why GM lagged so far behind on that particular item on their trucks.

Not sure on the ride. Seems like a 1/2 ton should ride better than a 2500 though. Possibly Ford stiffened the ride to allow higher payload and towing on the F150?
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Old 11-30-2018, 07:20 AM
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They made improvements on the ride of the GM 2500 even after the introduction on the 2015 MY. My '15 got to where it rode terrible. That's one thing I don't miss about it. Not sure if you get snow where you are, but if you do--driving in 4wd in the snow in your 2500 won't be anything like your F150. The 2500 just isn't made for that, and you'll get a lot of backlash and bucking.
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Old 11-30-2018, 07:48 AM
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TREY:
First Congrats on buying a great truck.
1. There are 2 cupholders so you want more? I believe there is an insert to replace the storage in front of the existing cup holders, check Gm Accesorys.
2. Proximity Fobs- the trucks do not have them, nor do they have the push start. Its the way GM does it.
3. Tires, don't know what you have OEM. If its Michelins they are a great all around tire- fair at best off road.
4. Off road, its a 7500 lb truck so it WILL get stuck easier, its physics, not the trucks fault.

You have amazing power in that truck.

JOE: I switched shocks on my 15' to Bistein.... helped alot.
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Old 11-30-2018, 09:41 AM
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Congrats on a nice Truck! GM definitely has the quietest cab of any of the diesels I have been in. it's remarkable how quiet they are and how smooth they drive. I don't want to get into a solid axle vs IFS debate but for ride quality you can't beat a Chevy/GMC with their IFS.

As far as tires go, I've had great luck with BFG KO2s. OP, I know you said you had them on your F150....so were you happy with them or were you looking to try something different? I've been plenty happy with the two sets I have had. I had about 75k miles on my first set and so far have about 20k on my new set. They are 305/65/18 which is a 33.6x12 if that information matters. Nice even wear, great on and off road performance, great in snow. If you are looking for another brand, check out Cooper, Nitto, Toyo. I've heard great things about them and used to have a pair of Nittos as well but I like the BFGs better.
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Old 11-30-2018, 09:46 AM
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I've ridden in quite a few 2500HD's. My non-scientific observation is that the diesels ride better than the gas motor trucks. My suspicion is that the spring rates are identical in both, and the extra weight of the diesel helps with ride quality.
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Old 11-30-2018, 11:51 AM
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As to the cup holders..if its a Denali, it should have one of these in front of the flip up center console.


At least in my 2014 GMC 1500 and my 2015 GMC 2500, you could put two of those in. I haven't checked my 2018 GMC 1500 to see if the 2nd would fit, but I'm pretty sure it would.
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Old 11-30-2018, 12:01 PM
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Originally Posted by TreyD View Post
SO I recently traded a 2015 CC F-150 Lariat with Ecoboost in for a 2018 Denali Crew cab. This is the first diesel I have owned and drive short distances to work. I traded early due to the motor about to require a second set of bearings in less than 54K miles. I got a service plan and warranty for 120K miles and have a few questions. First, why does GM not have proximity locks and coded door locks on truck this expensive? Second, can you get additional cup holders for the console? Third, can someone explain to me why this truck rides smoother and quieter than the F-150? I had a leveling kit on the F-150 and the 4x4 (not FX4 shocks) and BFG KO2 tires.. So far I am very impressed with how quiet it is. I also noted that pulling the next boat I want will be much easier with this truck than the f-150 which fuel economy tanked when towing.
I also have a question as to what the best all terrain tire will be for this truck as I like to hunt at Fort Stewart and the trails there can be a little muddy.

Sorry for the rant. It's the first GM product I have owned. So far other than re-learning to get the key out, I have been very pleased.
I wasn't aware that any manufacturer was doing proximity keys in a 3/4 or 1 ton truck. There is a dealer option to add a key pad I did that on my 3500hd. You think these trucks ride good now get a zone 5" and decrank it to 4" with bilstein shocks all the way around. My truck drives and rides amazing with that set up. I have Nitto m/t and love them because I tow 14k and they are F rated. I currently have over 15K on them and I think 40K is a reasonable expectation on wear.
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Old 11-30-2018, 12:18 PM
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Originally Posted by TreyD View Post
can someone explain to me why this truck rides smoother and quieter than the F-150? I had a leveling kit on the F-150 and the 4x4 (not FX4 shocks) and BFG KO2 tires..
You answered your own question. Leveling kit
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Old 11-30-2018, 12:33 PM
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Originally Posted by TreyD View Post
SO I recently traded a 2015 CC F-150 Lariat with Ecoboost in for a 2018 Denali Crew cab. This is the first diesel I have owned and drive short distances to work. I traded early due to the motor about to require a second set of bearings in less than 54K miles. I got a service plan and warranty for 120K miles and have a few questions. First, why does GM not have proximity locks and coded door locks on truck this expensive? Second, can you get additional cup holders for the console? Third, can someone explain to me why this truck rides smoother and quieter than the F-150? I had a leveling kit on the F-150 and the 4x4 (not FX4 shocks) and BFG KO2 tires.. So far I am very impressed with how quiet it is. I also noted that pulling the next boat I want will be much easier with this truck than the f-150 which fuel economy tanked when towing.
I also have a question as to what the best all terrain tire will be for this truck as I like to hunt at Fort Stewart and the trails there can be a little muddy.

Sorry for the rant. It's the first GM product I have owned. So far other than re-learning to get the key out, I have been very pleased.
Congratulations on the new ride.
That truck should last you a long time.
Currently have 315,000 miles on the 05 D-Max.
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Old 12-02-2018, 06:57 AM
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i have a 2017sierra duramax with the all terrain x package. basically a slt with a bunch of factory add ons. it came with the goodyear duratracs.i took them off on the 2nd day and put on nitto exo grapplers on it. thicker sidewall for the weight of the diesel, aggressive looking and good bite off the pavement. the michelins i had on my 13 were the best road tire i had but sucked even on wet grass when backing boat into yard . good luck with truck and the new design of fuel filter makes it easier to change then past model.if you do it yourself go to dieselfiltersonline.com for the best prices ive found for factory filters including air filters. i also picked up an extra filter housing for a spare in case of any issues. you will need a 36 mm socket to make it easier to change them out.
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Old 12-02-2018, 07:04 AM
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My fishing buddy has a 2018 Silverado 2500 Duramax 4WD LTZ Texas Edition with the duratecs. I swear it's smoother and rides better than my 2016 Sierra 1500 SLT 6.2L 4WD. I switched my Rancho shocks to Bilstien 5100 when the Ranchos wore out at 45K miles and the HD is still better.
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Old 12-02-2018, 10:33 AM
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Welcome to GM ownership. You no longer have a hunk of shit.

I've driven a 2019 Duramax. It is crazy how quiet they are. The only way I knew it was running was from the gauges.

I actually took a 2015 Duramax cross country to Pennsylvania from Houston a few weeks ago. When I got back home into my 2006, I realized how loud it was.. lol. The new ones are quiet for sure.

That 2015 I took was a rough ride after unloading, but it was a 3500 DRW. I haven't really experienced the ride of the new 2500's, but my '06 isn't too bad. It does ride much better with a load on the rear.

If your factory tires are Michelin, keep them. Best tires there are

Again, welcome to manhood. The Duramax and Allison combo is a true piece of American machinery. Enjoy!
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Old 12-02-2018, 10:42 AM
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I have a 2013 dirty max in a 2500 and all it has done is pulled my pig sled. It has been trouble free with 60k on the clock. Engine, trans package can't be beat. GM stepped up their interior in 15'. My is garbage plastic.
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Old 12-03-2018, 09:25 AM
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Originally Posted by Joe View Post
... Not sure if you get snow where you are, but if you do--driving in 4wd in the snow in your 2500 won't be anything like your F150. The 2500 just isn't made for that, and you'll get a lot of backlash and bucking.
Turn off the traction control. You almost twice the torque of a 150, breaking the tires lose is easy.
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Old 12-03-2018, 09:32 AM
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If you only drive short distances, you'll need to take it out once in a while to finish it's regen. You may want to look into an Edge CTS2 to see what's going on (EGT, DPF condition,....)
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Old 12-03-2018, 09:56 AM
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Best tire Firestone Transforce AT, I get 70-80k miles out of them, 2007 Crew Cab DMax 180k miles.
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Old 12-05-2018, 10:20 PM
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Congrats on your new truck. I just picked up a 2018 LTZ Z71 Dmax a few months ago. I don't know what the proximity or push button BS is, or what it's needed for, but I can say that this is the quietest and most comfortable HD truck I've ever been in, even better than most 1/2 tons. I seem to have endless room for cups and other crap in the center console.
Coming up on 5,000 miles and really happy so far. Pulls my boat like a dream and is getting 17 in all around driving. I hope it's as reliable as my old 2002 LB7. Time will tell....
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Old 12-06-2018, 06:24 AM
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Congrats on the new truck and welcome to the diesel world.
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