MG386

the black mirror caps are a dealer installed option. They ship with chrome and the dealer is supposed to install the black caps, as well as side steps, floor mats etc.. maybe the dealer never installed, or maybe the previous owner changed back to chrome

My understanding is that they made an updated PF63e that has the correct bypass psi from the E model, but now its just sold as PF63. part number 12707246

FIX THE TAPATALK ISSUE!!!!

What elevation are you driving? You will find that lower elevations closer to sea level will offer 93. I'm in the PHX area 1300+ average and there is no 93, only 91. Basically the thicker the air (lower elevations), the higher octane you need to make highest power. Close to sea level, 93 will give highest power for the 6.2, if you run 1k feet elevation and higher, 91 is fine. If you are up in the mountains 5k+, you are probably fine with 89 to 87.

This is going on a long time, is this going to get fixed?

2020 AT4 6.2 18000 miles. No issues in powertrain and I have a heavy foot and tow a lot, a very small rear window leak, but I'm still overjoyed with my vehicle. Sent from my Pixel 5 using Tapatalk

2020 AT4 6.2/10speed Almost 7k pounds all loaded up pulls great! Sent from my Pixel 5 using Tapatalk

I have a 6.2 10speed AT4 and tow a 7k boat a lot through the mountains 7%grade 1:40 each way to the lake. The truck does great. It will rev up a bit if your trying to go fast 65-70, but it's been great. Sent from my Pixel 5 using Tapatalk

Very happy with my ceramic. All it ever needs is a quick run through a touchless wash, and all the dirt falls right off and it looks perfect. Sent from my Pixel 5 using Tapatalk

I mounted to my 2020 AT4. They came from a 2021 HD. Same same. Sent from my Pixel 5 using Tapatalk

I was having my trailer tpms sensors installed on my boat trailer last week. We started the learn process and one wheel was still being worked on about 60 feet away and it paired up just fine. Probably depends on current tpms battery condition for effective range. Sent from my Pixel 5 using Tapatalk

Yea, at this point I'd rather deal with a few drips. They're not touching the headliner(yet). And I really don't want dirty mechanic fingerprints all over my pillars and liner. Sent from my Pixel 5 using Tapatalk

Add me to the list, 2020 AT4. Built Nov 2019 in mexico. 17,000 miles. Home garage, and work garage, and live in PHX, so not much water exposure. I'll probably wait a while to see if GM can come up with a good fix. Sent from my Pixel 5 using Tapatalk

Mine started getting a little loud untill I rotates, and they quieted way down after. Now.i rotate every 5k with oil change, and they're staying quiet at almost 20k miles. Sent from my Pixel 5 using Tapatalk

I see that in my AT4 all the time, but I always remote start as I'm walking up to it. It shows while engine running, but before I press the start button. Very strange to see it on a RST though [emoji16] Sent from my Pixel 5 using Tapatalk