CamGTP

$4.19 or so for 87. $5.40-5.80 for diesel.

I'd guess that it's because they are Mann-Hummel filters since about 2016, they own Wix and are mostly all made in China now.

I owned a Grand Prix for over 5 years, daily drove it everyday. Had my truck for 8-9 years now, daily drove it for 5-6 years. Many other vehicles in that same time frame I listed above, always ran wix filters in all of them. I'm not easy on any of my vehicles either. Added more boost with the supercharged pontiac, tuned my truck and added parts to that. Have a foxbody with a 6.0 turbo setup now, all with those filters and good oil. I'm not being defensive, I just think people go way into the weeds with some of this stuff. I've pulled apart so many engines out of clapped out vehicles destined for the scrap pile. Some piece of junk work truck where you knew the guy didn't take care of it. Running some cheap valvoline instant oil change or fram filter on it, pulled the bearings and they looked pretty dam good for cheap filters. Oil is so good now, it just works and a filter is better than no filter even if they are cheap.

I ain't blowed up an engine in the last 15-20 years running wix filters from Napa, don't see that changing anytime soon. Stats this and stats that, big deal. Run good oil, change it often and you'll be just fine.

I have an Autel, works great for what it is. Can't do some specific things because you need say the GM tool, VCDS for Audi/Volkswagon and others of course. But those times are few and far between for me. The other tool I'd like to try one day is the new Topdon scan tools. Seen several video's on them and many youtube people review them. I've never subscribed for updates or payed to do that stuff on my Autel, so I'm sure I'm missing out on some of the updates but I'm fine with that for now.

$3.99 everywhere in MN and WI. Diesel well over $5.00 now.

Should probably post this here too. This tells you what engines you can get with each trim. Certain engines again won't be available depending on trim. Like no 6.6 V8 in the Trail Boss for example. https://gmauthority.com/blog/2026/08/heres-2027-chevy-silverado-engine-availability-by-trim-level/

Can ask that about a lot of places. Holiday sells 91 for $1 over 87 octane. BP 93 is 80 cents. Amoco 93 is 80 cents Kwik Trips is $1.20 for 92 or whatever they have and $1 for the 91. I know that this is not exactly same as what you are saying with the premium to premium debate of those two stations but why is there such a difference. Top Tier this and that, it's all BS. All the fuel comes from the same damn refinery, so give me a break.

Was all the way down to $3.69 a gallon but then jumped back to $3.99 just because for some reason. Diesel floats between $4.80's to $5.10ish a gallon. I even saw Diesel #1 for $6.09 today but nobody in there right mind even buys that in the summer.

Okiee dokie there bud, way to take things to the extreme. I guess you missed the whole point and take things way to serious. I installed different EV6 style injectors that just so happen to be larger in my car running the same LQ4 engine and with a better spray pattern than the stock style injectors and I noticed no difference in the idle quality. Kinda was my round about way of saying that even if you put the same size but better style injectors in your truck, you will likely see the same thing. I'm sure you're great to have conversations with in person if that's how you act through a keyboard. One little things sets you off and now I guess my dick is all up in your face.

While it may be true that multi hole injectors atomize the fuel better, it ain't going to make a difference on your stock truck. I have USCAR EV6 50lb/hr injectors in my turbo 6.0 foxbody with stock cam/valvetrain, I didn't notice a smoother idle or overall driving with just the larger injectors. Even if they put out 26lb/hr at 4 bar pressure like you need, all of the other data won't be the same as the GM data. The offset vs volts, short pulse adder, min pulse width and flow rate data all need to match the injectors installed, no way all of that stuff would be the same.

Why is my question? Any change in injectors requires a tune. Unless you are going back with the OEM part number or a newer part number of that same injector. Any size difference or type difference like the EV6 style injectors all have different injector data for them. And there is no EV6 injector that matches the factory 25 lb/hr size that your truck comes with. I've been messing with these trucks and tuning them for a long time and what you trying to do doesn't exactly make sense to me.

$4.19 for 87 and Diesel back over $5.00 now.

To me it honestly makes zero difference what filter you run. It's not a race engine, just a truck engine that's mostly bumming highways and it just needs a filter that filters oil. The filter used to be a 7060 and the long version was a 7045. Now it's the newer updated filter that the K2XX trucks and newer run, the 100255 I believe if we are using napa numbers. Any of those filters is going to do the job. I wouldn't overthink it, to me it makes no difference because those first filter numbers worked for 18+ years before the spec suddenly changed.

Different wheels for sure.