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GMC Sierra - SLT vs Denali

jernatety
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jernatety Enthusiast

jernatety

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Put the drive selector in M, then you can put it in m1, m2, m3, m4, etc with the +/- buttons on the shifter.

 

If it goes past 6, you have an 8 speed

 

When in M mode, it just means whatever gear you select is the highest gear it will go in. It's not like typical +/- paddle shifter that will shift on demand like a wanna-be sequential

 

Gotcha, never thought of that, thanks for the suggestion. All of my last three trucks have had auto shift. I tinkered with that locally around town shortly after we bought it but didn't get past 3rd before I decided to put it back in drive. I'll try that on the way home from work, (turnpike driving).

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StillOffshore
StillOffshore

I have the denali....it's nothing more than a name and mrc. Coming from a tahoe, I really don't notice the suspension being that much better, but it's there. It operates like a suspension. I think I'v

Havvkeye
Havvkeye

You can't seriously be arguing that adding weight improves mileage right? I am in the camp that an extra 60lbs will not be noticeable but there will be SOME decrease with any added weight.

JTodo
JTodo

I'm just here for the laughs ?

Havvkeye Enthusiast

Havvkeye

Posted
Posted

 

It was purchased used with 12k already on it. I'm not too concerned with the decision the original owner made, It also has the chrome package and we got it for a steal. This truck is awesome and awesome looking.

 

It is a good looking truck - looks very similar to mine except it is white :)

 

 

On another note, it DID have one thing that is a thing of the past.... It had Dual Tanks on it, LOVED IT. 40 gal total fuel capacity. Wish I could still get that today. Only thing I really miss...

 

Was looking at Tundra's the other day when buying the lady a Camry and they had a 38 gallon tank listed. I had a 33 or 34 gallon tank on my last truck (Titan) and loved it as well. I am not sure why that isn't a more popular option.

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jernatety Enthusiast

jernatety

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It is a good looking truck - looks very similar to mine except it is white :)

 

 

Was looking at Tundra's the other day when buying the lady a Camry and they had a 38 gallon tank listed. I had a 33 or 34 gallon tank on my last truck (Titan) and loved it as well. I am not sure why that isn't a more popular option.

 

I see you have K&N Intake on your signature. Any chance you can post a video of starting up the truck and engine rev? I've been debating the K&N for two reasons. On my wife's side of the fam, Her brother, uncle and cousin, (uncles son) all have Silverado's and they all installed the K&N cold air intake. They said it helps with gas mileage and suggested I should get it as well, because it also sounds really good too. Does it change the sound that much?

redwngr Senior Enthusiast

redwngr

Posted
Posted

 

We bought ours used, it's also a 16, the salesman said, "your're really going to like this, I think it's an 8 speed too". He didn't know because we bought it from a dealership called "Carsense", they buy up off lease vehicles and resell them, most of the sales guys don't have any clue what they're selling. How would I know if this is an 8 speed, there's nothing in the manuals.

You could also verify which transmission on the glove box RPO label.

 

MYC is the 6 speed

M5U is the 8 speed

 

I

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redwngr Senior Enthusiast

redwngr

Posted
Posted (edited)

AN3 seats on SLT are 10 way

AN3 seats on Denali are 12 way (which are not available on SLT)

Edited by redwngr
Cosmic Charlie Enthusiast

Cosmic Charlie

Posted
Posted

AN3 seats on SLT are 10 way

AN3 seats on Denali are 12 way (which are not available on SLT)

what is the added adjustment on 12 way ?

jernatety Enthusiast

jernatety

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Posted (edited)

AN3 seats on SLT are 10 way

AN3 seats on Denali are 12 way (which are not available on SLT)

 

It's 8 speed, got on the turnpike on the way home yesterday and tested.

 

So now that I know I have a question about our camper. We have a 33' camper which in the past truck, (Ram) we averaged 9 miles per gallon hitched up with tow control enabled. Which is better, using the auto shift or just leave it in drive?

 

And for what it's worth the cab is huge. The back windows are the same size as the front. I'm 6' tall and can practically stretch out.

Edited by jernatety
Z45 Senior Enthusiast

Z45

Posted
Posted (edited)

 

 

On my wife's side of the fam, Her brother, uncle and cousin, (uncles son) all have Silverado's and they all installed the K&N cold air intake. They said it helps with gas mileage and suggested I should get it as well, because it also sounds really good too. Does it change the sound that much?

I believe I got better MPGs because I need to justify my silly purchase. You CAN'T gain mileage in a computer controlled system by changing the filter. More air = more horsepower = more fuel.

 

Effect of Intake Air Filter Condition on Vehicle Fuel Economy

 

 

 

Results show that clogging the air filter has no significant effect on the fuel economy of the newer vehicles (all fuel injected with closed-loop control and one equipped with MDS). The engine control systems were able to maintain the desired AFR regardless of intake restrictions, and therefore fuel consumption was not increased. The carbureted engine did show a decrease in fuel economy with increasing restriction. However, the level of restriction required to cause a substantial (10–15%) decrease in fuel economy (such as that cited in the literature3,4 ) was so severe that the vehicle was almost undrivable. Acceleration performance on all vehicles was improved with a clean air filter.

Edited by elcamino
JTodo Enthusiast

JTodo

Posted
Posted

There's quite a few differences, there's a list running around here somewhere if you do a search. If you negotiate well you can get a Denali for a similar (sometimes better) price

fbachman Senior Enthusiast

fbachman

Posted
Posted

 

Was looking at Tundra's the other day when buying the lady a Camry and they had a 38 gallon tank listed. I had a 33 or 34 gallon tank on my last truck (Titan) and loved it as well. I am not sure why that isn't a more popular option.

 

Well, i must admit that fuel economy in trucks has improved quite a bit since my '91 F150 (had the 302 V8). I remember folks asking what mileage I was getting with that truck. I used to answer 13mpg. They would then ask City or highway?... and I would answer "correct".

 

My Sierra gets 16-17 all day long in suburban driving and 21+ on the highway. That adds up on range.

 

Most American manufacturers will size the tank for approx 400 miles range in the city. Doing the math on my truck, 400/16=25, and, hence a 26 gal tank.

 

I am with you, though, if there was a choice of a larger tank, I would have "bought on" for sure.

Silverado Steve Senior Enthusiast

Silverado Steve

Posted
Posted

I think a 30 gallon tank wouk be about right. I think people forget gas weighs a lot so adding bigger tanks means more weight, thus less mpgs. Also many gas stations here limit each fuel purchase to 30 gallons.

NWI Denali Enthusiast

NWI Denali

Posted
Posted

I think a 30 gallon tank wouk be about right. I think people forget gas weighs a lot so adding bigger tanks means more weight, thus less mpgs. Also many gas stations here limit each fuel purchase to 30 gallons.

Gas weighs 7 lbs per gallon, give or take. An extra 4 gallons (26 to a 30 gallon tank) would only be an additional 28 lbs. An extra 28 lbs on a 5500 lb truck that has a 1500lb payload capacity, you will never notice.

Silverado Steve Senior Enthusiast

Silverado Steve

Posted
Posted

Hence why i said 30 pounds versus our 26 gallon. Go to 34 gallons, now you're running what would be sand tubes in the bed of your truck.

 

 

Gas weighs 7 lbs per gallon, give or take. An extra 4 gallons (26 to a 30 gallon tank) would only be an additional 28 lbs. An extra 28 lbs on a 5500 lb truck that has a 1500lb payload capacity, you will never notice.

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