Oil pressure 2024 6.2

[DontTaseMeBro]

My 2005 GMC Yukon 6.0l non Direct Injection, non AFM/DFM engine is now 20 years old with 275k mile in it. Only thing I have done to the engine is a water pump, thermostat and 2 sets of belts. While it does not have as much power or get as good fuel economy as my 2024 6.2l Direct Injected engine with AFM/DFM, there is no way this newer 6.2l engine will likely last as long or have such good reliability. The newer engine has probably 50-100 more parts that are really not necessary. The AFM/DFM is not really a large fuel savings, but over complicates the engine and reduces the reliability. I have a AFM/DFM disabled at this moment on my new truck, but the engine still has the stupid camshaft and lifters that can and likely will still fail prematurely. Not to even talk about the possible bearing problems because they are now running water for oil and have a 2 stage oil pump that reduce the oil pressure at lower RPM's. Non of this was done for reliability, it was all done to check a box that some politician decided was required. Non technical people making technical decisions is and will continue ruining products and this country. The US is also dying on the sword for the rest of the world and we are all foolishly paying for it out of our pockets. We have had the cleanest automotive fleet in the world for almost 30 years.

All this GREEN crap is doing nothing more that costing the consumers money and the product lifespan of most of these products is 1/2 or less of products from 20 years ago. Also with all the rapid changes parts are hard to find and not usually available for as long a period of time. Also trying to legislate elimination of specific appliances and fuel types is foolish and pandering to a bunch of misguided non technical folks.

If my 2005 truck did not have the typical rusting rocker panels, I would likely have put money into the truck to keep it going vs having to spend stupid money on an exact replacement newer vehicle. I would prefer not to consider this as an option, but the options available today are really sad.

I wanted to add something for context regarding 2-stage hi/lo pressure oil pumps and why I think they are a problem in search of a solution. I previously owned a 2014 E63 AMG. They've been known to eat engines(mainly due to cylinder scoring) without any warning signs. It took 9 painstaking years for the community to figure out that the scoring and eventual engine failure was primarily a result of the oil pump solenoid getting stuck in an open position(low pressure). Owners never knew if the solenoid failed(stuck open/closed) because it would never trigger a CEL. Also guess what the failsafe position of a working solenoid is when power is removed from it? Thats right, the closed hi pressure position. So finally some genius figured out that by simply unplugging the solenoid, they would save their engine from eventual assured failure. In conclusion, all of this was done by MB in the name of "efficiency" aka infinitesimal MPG savings.

 

[Antonm]

I wanted to add something for context regarding 2-stage hi/lo pressure oil pumps and why I think they are a problem in search of a solution. I previously owned a 2014 E63 AMG. They've been known to eat engines(mainly due to cylinder scoring) without any warning signs. It took 9 painstaking years for the community to figure out that the scoring and eventual engine failure was primarily a result of the oil pump solenoid getting stuck in an open position(low pressure). Owners never knew if the solenoid failed(stuck open/closed) because it would never trigger a CEL. Also guess what the failsafe position of a working solenoid is when power is removed from it? Thats right, the closed hi pressure position. So finally some genius figured out that by simply unplugging the solenoid, they would save their engine from eventual assured failure. In conclusion, all of this was done by MB in the name of "efficiency" aka infinitesimal MPG savings.

Around the mid 90s to early 2000's Mercedes also switch their wiring insulation from a polymer plastic based to a soy planted based insulation, you know , because plastic is bad for the environment and all. But man, do rodents love to eat wiring that's literally coated in food. So a lot of Mercedes owners had to fork out big bucks to get complete wiring harnesses replaced because,,, green.
...

 

[jfoj]

No idea how how the 2 stage oil pump operates. Agree that this was likely all done in the in the name of efficiency. Will need to see if I can find any info on how this 2 state oil pump is controlled/functions.

Need to see if the oil pressure can be monitored via the OBDII data stream so I can baseline the oil pressure under a few conditions so I can determine if there may be a problem brewing.

 

[DontTaseMeBro]

Around the mid 90s to early 2000's Mercedes also switch their wiring insulation from a polymer plastic based to a soy planted based insulation, you know , because plastic is bad for the environment and all. But man, do rodents love to eat wiring that's literally coated in food. So a lot of Mercedes owners had to fork out big bucks to get complete wiring harnesses replaced because,,, green.
...

BMW did the same exact thing during that era. In more recent times, Tesla saw that and said “hold my beer”.

 

[jfoj]

The Germans also did not anneal their copper wiring like they should have and had multiple broken wires due to wire fatigue. In the same conditions during the same timeframe the US manufacturers did not have the problems the German manufacturers ran into.