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The less maintenance sales pitch falls right into their plan, we sell parts and vehicles. Real simple mode of operation, you want to drive it a long time change the fluids more often. Has worked for me over 50 years.

Historically I’ve run about 2 to 1. So two oil changes in the time it takes the OLM to tick over once. I only reset them when the truck starts reminding me to get an oil change and have no use for them. In no cases has the oil I’ve sampled been fit to run twice as long so the OLM is bunk across GM and other makes/models. My experience is that there’s ALWAYS something. Either the TBN is ready to fall off the cliff, fuel dilution too high, viscosity down (shear or dilution). But I suppose if you never actually test, you wouldn’t know.

That is a huge misconception. Bigger does not always equal safer. Modifying does not make it safer either, with exceptions. Think of this. Your truck in stock form is capable of emergency maneuvers, proper stopping distances, its handling is designed around the factory wheel/tire packages, etc. 37s and a lift? Now you've affected your braking distances, handling and ride control. You've raised your center of gravity higher. Your front visibility is now obstructed more than stock, same for your rear. Does it look cooler? Yes. Does it now work as good as it did from factory on road? NO. As for my mention of exceptions? Say you had a sedan or crossover. They typically come with all season tires. If you swap out for a performance all season or a summer tire, you improve your car by lowering its stopping distance (better braking because of traction) and improve the handling (regular and emergency) of the vehicle. That is an actually improving modification. My old 2019 LD 1500, I ran UHP all season tires on 20in wheels in a factory offered size. It improved all aspects of how it drove over the Duratracs it came with from the factory in the stock 18" tire.

I didn't mean to seem dismissive of hurting mpg. Lifting the truck while still using stock tires would hurt mpg too, I was just saying that both engines have plenty of low end combined with a low first gear that drivability would be fine with stock gears. Towing with a significant lift sucks regardless of engine, transmission and gear ratios. And suspensions that allow extra travel don't carry extra weight well. If you're using the truck to tow or haul near capacity a big lift isn't great and reduces the the truck's capacity and these trucks are too heavy and long to be good for serious off road.

I like things to be more nailed down. For instance. People ask why my father left a multi million dollar business in NJ in the seventies and started over in Texas. The answer is simple, payola, threats and quality of life. He didn’t like the game. And he didn’t want his kids to be wrapped up in that mess. That’s nailed down no guessing.

Morality and Profit are two dogs fighting over the same bone. The bone looses. Profit isn't always monetary. Position, power, leverage, prestige, celebrity, notoriety, fame; all forms of profit and those wanting whatever their currency is, don't care about who that pursuit hurts.

google "gm savi scan"

My last oil change I did at 10,520 miles on vehicle. 3135 miles on oil. OLM says 44% remaining. `25 Silverado 5.3. 4 oil changes on this thing at this mileage.

I hear you, its just not something one would even think of that the new oil in the container isn't filtered to a spec one would expect it to be. As to a passenger vehicle theme and the maintenance requirement to meet to ensure a warranty is honored, these days with claims of life time transmission fluid on some models and the limited amount of oil changes that would bring one to the end of the factory warranty, that sells vehicles for those that like to hear "easy care maintenance free", but the manufacturer certainly knows different as to what that more than likely means for the longevity of some of the components if given that minimum spec maintenance. Then again I imagine there are a fair number of people that really don't care as long the vehicle gets them a certain number of years down the road because they are the type that want the next new thing, new and improved ... more bells and crap etc on the new one on the show room floor. Manufacturers have learned the phycological game to entice the customer out of their money !

The cynic in me agrees, and there are people who wouldn't buy a new truck so long as the old one still works. I don't think that is the majority anymore though, most people buy a new truck when they WANT to, not when necessarily when they NEED to. How does a manufacturer get the NEW buyer though? Some only buy based on the style, the price, the specs, etc. and these buyers might be 'conquest' buyers. In the truck world though it is massively brand loyal, meaning if my first truck is a Chevrolet and I have a good experience with it, I'm likely to buy another. Key point is that my FIRST Chevrolet likely isn't a NEW Chevrolet. Its used with miles on it - THAT is where a manufacturers incentive to make a long-lasting vehicle is. GM is so focused on selling NEW vehicles they ignore the experience of the people buying their used vehicles. Which is foolish, because these are the people that will either become the next NEW buyer, or swear off GM forever. There are very few DESIRABLE/ASPIRATIONAL GM vehicles, Corvette, Escalade... nobody stays up at night wishing they had a brand-new Equinox. Why? It excels at nothing mediocre in every respect. So then, who goes and buys a NEW one? The person who had one before and had a good experience with it.