Dustin Marshall

THANK YOU!!! 2024 GMC 1500. Camera System #86584185 Couldn't get the system to calibrate for the transparent trailer. Would only say "Calibrating..." and then never calibrate. Zero information as to what the issue was. Tried adjusting the camera mounting posting, rechecked multiple times. All good, but still. System would never calibrate the 'transparent trailer' function. Reduced my trailer height input from 122" to 118" and boom. Calibrated fine. I really wish GM would program a prompt that tells you if you input over 119" the system will never calibrate. The system height limit is listed as 177" or less. Anyway, Thank you very much for the help.

He means 119"

To answer the OP's question, I use Pennzoil Platinum 5w-30 (Dexos1 Gen 3) w/ an AC Delco PF63 filter. I'd use Pennzoil Ultra Platinum, but interestingly the Ultra Platinum is not Dexos1 Gen3. My second choice would probably be Valvoline Extended Protection, but I've had great results from the Pennzoil natural gas derived Platinum oils to use anything else.

FYI the AC Delco oil filter PF63, GM Part # 12707246 has been superseded by PF63, GM Part # 12731742 I have no idea what (if any) difference there are. Visually (holding both in my hand) they seem the same. I'm curious if there are any differences?

K&N filters do flow more air, BUT they also filter less and allow more particles to get through the filter. The oil in the filter media will also get on your MAF sensor and cause issues. This is very well documented. Modern stock intakes flow more than enough air for the engines needs. All you're going to get with an after market air intake is some intake noise. If that is something you'd like, go for it. Other than that it is a 100% waste of money and could also give GM a reason to void a warranty claim. I personally will stick with OEM filters with the OEM intake. Maybe Purolator One or WIX air filters in the stock intake? Probably just stick with AC Delco to be 100% safe.

Back on topic. 2024 GMC 2500HD AT4 w/ 6.6L L8T. Only 4300 miles, so still early...so far I'm happy to report no oil consumption. Really enjoying the L8T w/ 10 speed 'Allison'. Nice smooth and refined drivetrain. Definitely quieter, smoother with more refined shifts vs the Ford 7.3L w/ 10R140 (I've owned both).

I was wrong...only the 1/2 ton GM trucks have aluminum body swing panels (hood, doors, tail gate). HD still steel. Here is a video showing this...

Here is what I've found on the topic. I'm assuming the HD trucks are using the same body panels? I could be wrong on that. https://www.repairerdrivennews.com/2018/01/16/2019-chevy-silverado-cuts-up-to-450-lbs-with-aluminum-closures-higher-strength-steel/

Yes, I'm keeping an eye on my oil too. It's rock solid steady. So thankful it's not using oil. Loving this drivetrain!

Chiming in to report another 6.6L L8T that is silky smooth (cold / warm). Hope OP gets issue resolved. Keep us updated!! Good luck on getting issue resolved.

Another reason for the weight difference is that GM uses less Aluminum body panels vs Ford. GM 'swing panels' are now Aluminum (Doors, Hood, Tailgate). Everything else is steel. I'm actually happy that GM uses high strength steel on their truck beds vs Aluminum.

I used to have a 2022 F-250 Lariat SuperCrew FX4 w/ 7.3L *F-250 was taken out (totaled) in a violent hail storm last spring. We're talking golf ball to baseball size hail. Horrible. So thankful for Insurance! After a lot of research and shopping, I decided to buy a 2024 GMC 2500HD AT4 w/ L8T ('Allison' 10spd). Here are my observations now that I've owned both Ford and GM Heavy Duty gassers w/ 10 speed: The drivetrain in the GMC is a bit smoother. The "Allison" transmission shifts smoother, feels a bit higher in overall quality. Shifting from Park -> Reverse, Reverse -> Drive, Drive -> Park, etc is smoother in the Allison vs the Ford 10R140. ALL the shifting is very very nice in the Allison. I didn't have any issues with the Ford 10R140, but the Allison feels like an upgrade. I do wish the GM would display what gear you're in (Ford does this). Definitely a transmission win for GM! The ride is a definitely smoother in the GMC, as it has independent front suspension vs the Ford's solid front axle. This makes a very noticeable difference in daily driving a HD truck! Exterior and Interior design (personal preference of course): I like the GMC AT4 better. Especially when you consider the 2023 Ford Super Duty design. I feel Ford missed on the 2022 -> 2023 redesign. Again, this is just personal preference and opinion. The 6.6L L8T revs quicker and is quieter. Not that I was looking for a quieter V8. Just an observation. The mpg seems to be about the same between the two (~ 14 mpg average in city/hwy). Highway in my area is 70 to 75mph speed limits....so not pokey (ie not ideal for fuel economy). Also I drive a lot in stop/go traffic. I can feel the -29 hp reduction in power with the 6.6L (not horrible, but I think the Ford was a little faster). Off the line acceleration = GM is faster (but that is mostly due to 3.73 gears vs Ford 3.55 gears (2023+ F-250 offers 3.73 or 4.30). The 2024 GM 2500HD is a heavier truck (7472 lbs) vs the 2022 F-250 (6800 lbs). So my GM is 672 lbs heavier! 7.3L Godzilla 430 hp, 475 lb-ft (2023+ 485 lb-ft) 6.6L L8T 401 hp, 464 lb-ft. 2024 GMC 2500HD CrewCab AT4: *my specific truck Payload = 3378 lbs Conventional Towing = 16,000 lbs 2022 F-250 Lariat SuperCrew FX4: *my specific truck Payload = 2983 lbs Conventional Towing = 14,500 lbs. For those that work on their own vehicles, the one thing that I was surprised to discover was that GM 'wax dips' their frames vs e-Coat Paint. When working on the GMC (greasing front suspension) it is easy to get the oily wax all over your arms. Not a bad thing per say. Just wish GM would e-coat their frames (like Ford) and not use the messy wax coating that rubs off on you so easily. Conclusion: Overall I like the GMC better. Nothing really bad to say about the 2022 F-250, EXCEPT that I did notice some rough idling on occasion in the 7.3L....the internet 'lifter' concerns were in the back of my mind when that would happen. Was it an actual issue? I don't know. My 6.6L L8T is not using oil (as this is a reported issue for some out there). I think this is mostly on 2020, 2021 trucks? I've read many people say their truck does NOT have this oil consumption issue. So it might just be internet amplification (like the lifter issue probably is on the 7.3L)? I've been a loyal Ford customer for 20+ years...so going GMC was a big deal to me. So far I'm very happy with my decision to buy the GMC 2500HD (6.6L L8T w/ Allison)!

Okay, back on subject. I'd be very careful with Wix filters lately. I've personally seen two different models with crushed louvers (internal metal slits "louvers" inside filter) that were crushed enough to barely let oil flow through the filter. At least 50% were 100% crushed closed. The remaining louvers were slightly open...like 0.1 to 0.25mm. One of the two models with this issue I've held in my hand is Wix (WL102255) that I was going to install in my truck. I'm concerned Wix quality is having some issues, as like I mentioned this is the second time I've seen this. Crushed louvers would basically cause the oil to immediately by-pass your filter. The "dirty" oil that was able to go through the by-pass would be less than what typically goes through the filter media on a healthy filter. Not Good. Very disappointed in Wix for this. Both models came out of the same Wix factory. I'm going to stick with OEM AC Delco PF63 #1270724. I really like the internal open design. Flow wise, I believe this filter is one of the best on the market. Plus it is OEM so I trust the quality. Win win.

Curious how bad the leak was?