6.6L Gas will be fine, right?

MacLaren · March 5

48 minutes ago, Rozz522 said:

A gasser Custom with 20" rims should get you 10650 GVWR which means the quoted 3760 lbs payload rating so 2850 or 900lbs under that seems like more than a configuration or package issue. I wonder if you got a truck with the lower 10000 GVWR de-rate? I've seen it on some trucks on the inventory pages where the truck has 18" or 20" rims and the "10000 lb GVWR" is on the build sheet/window sticker as an option. My assumption was this was for licensing/registration purposes in some states. If that's the case, a 10000 lb GVWR only get you up to 3139 lb for payload and I can see the 300lb reduction being due to configuration. I just looked on the build site and it's an option to get a 10000 lb GVWR on the Custom even with 20" rims. If this is the case, my assumption is that this is only a sticker/rating issue and not a physical limitation of the truck but I may be wrong.

Ya know, on my options page 10,000 GVWR is listed. I'll bet that's it.

And what you say makes sense because she asked if I wanted ( N.C. weighted ) a plate for 7,000 pounds or 12,000 pounds. I went with the 12,000 pound weighted plate.

Edited March 5 by MacLaren

MacLaren · March 18

Just one other observation/question.

We all know that those massive horsepower & torque numbers are with regular gas, which is phenomenal. But, I wander if there would be any noticeable difference if using say, non-ethanol 93 octane premium gas?

CaptainMorganNC · March 22

On 3/18/2021 at 8:38 AM, MacLaren said:

Just one other observation/question.

We all know that those massive horsepower & torque numbers are with regular gas, which is phenomenal. But, I wander if there would be any noticeable difference if using say, non-ethanol 93 octane premium gas?

I don't think that you would get more hp out of premium gas. The point in premium gas is that it burns at a higher temperature. Really tight engines need it so that the gas doesn't prematurely detonate (knocking sound you hear) from the higher cylinder temperature.

CaptainMorganNC · March 23

I put in an order for a '21 2500 AT4 last week. I am currently pulling a 33' travel trailer with an '02 Cadillac Escalade with a Hinsley Arrow hitch. The Escalade has the 6.0L, but only 4 speed transmission. The 6.0L is a great engine I hope the 6.6L is as good. The Hinsley Arrow is an awesome hitch! You can drive next to a semi at 70 and not feel anything! I decided to go with gas 2500 because of the GCWR. A lot of times it is overlooked, but is a very important number! My Escalade has a GCWR of 14k lbs. By the time you add the weight of the trailer, the arrow hitch, stuff we put in the camper, me, my wife, dogs, gas etc. We are right at max. The Escalade is rated to tow 8500, but that is if nothing, including people, are in the Escalade. I had to load our luggage in the back of the TT to try to take some tongue weight off of it. Be careful with towing numbers they are WAY overrated especially the Fords. I had a buddy that got a '14 F150 EcoBoost and thought he could tow like 12k lbs, but after you do the math he would max out at 7.5k! I am also going to feel better with bigger brakes etc. We do not tow in the mountains right now because the Escalade would barely make it, and the ride back down would be scary. The Escalade is a decent tow vehicle if not going up mountains. I hope that the 6.6L with the 6 speed tows better. Never got to try it out, but bought anyway. Anyone coming from a 6.0L to 6.6L? How is the difference in towing? Also have an 02 Escalade in great mechanical shape for sale if anyone is interested lol!

Ray Pickle · March 23

Had 6.l in a 2500 prior to 6.6. You can't fairly compare just the powertrain/engine betwewn a Slade and a H.D. truck, but between moving uo to an H.D. truck and the 6.6 and 6 apeed trans., from a Slade it qill be night and day.

newdude · March 23

So far the 6.6 is a great engine. Someone bean counted the 6L90 parts though...Local paving company had the output housing shear at 20,000 miles (plowing and towing equipment). There was an exact same failure on the 2020 HD facebook group at 7,000 miles, no big towing or abuse. Pretty sure there was one at 14,000 miles on there too. No drive, no reverse but you have park still.

Edited March 23 by newdude

itsnotlookinggood · Saturday at 05:12 PM

On 2/25/2021 at 6:35 AM, Z71RAD88 said:

The shortage of trucks has made buying even more difficult for me as I was already on the fence of wether or not I needed to bump up to a 2500 for how small/light of a TT I plan to tow, but I feel more comfortable being “over-vehicled” with a 3/4 ton over a half ton and the price difference is so close for how much of a bump you get in overall capability.

$10k is a lot of extra coin for a diesel vs the gas and it’s not even getting into the maintenance side or other added costs with a diesel, so where I think it would be nice to have it’s not necessary for what I’m looking to pull which is a 18-22” TT between 3500-5000 lbs dry weight. The places we plan to go will have full hook ups so I don’t need to worry about maxing our the trailer for travel purposes.

My question for those that tow now with the 6.6 gas and have had diesels, is the exhaust brake going to be missed if I’m towing that size trailer in the mountains? The highest elevation will be 7,000 ft at the summit.

This is will not be a daily driver, only weekend warrior so roughly 8-10k is all I plan to drive the truck, so it will be sitting quite a bit...another reason I’m thinking the gas motor will be better for my needs.

ive owned a few different 2500s over time, never a 1500. I personally would buy a 1500 in a heartbeat if I didnt pull a hoe or asv every blue moon. normal towing for me 7300lbs, the 2500s are not needed.