Jump to content

Recommended Posts

Posted
1 hour ago, Gray Fox said:

1.) So I guess you are doing what I wasn’t going to do.

2.) So I guess you were telling me that I shouldn’t use a K&N filter.

3.) Maybe Delco will put a nut on their’s so they will come off. 

1.) What is that? 

 

2.) Nope I don't tell people what to do. I supply useful information. Do with it as you please. 

 

3.) I have no issue removing the filter with a cup wrench. No one I know does. 

Posted

This 5.3 is pretty new - 11,000 miles. Not much iron on the magnet. My other vehicle - JGC has a pentastar 3.6 and 3 or 4 times the shiny accusation of iron with 9000 miles on it with a similar magnetic drain plug.

 

i am thinking the design difference is in the chains. The v8 has one chain and the jeep has 6 i think. The jeep also has a lot of rollers in the valve train. Hardening is a big factor in how much iron ends up in the oil.. but so is the design. 

 

I don’t really like the tiny filter on the 5.3 but GM might know what it is doing, too.

image.jpeg

Posted

A filter removes wear particles in a effort to minimize three body wear. It can not be eliminated as these particles are a result of two body wear that happens before filtration. Ergo these particles must be flushed from the source, to the pump pickup and onward. Let's just say the filter minimizes recycling them. 

 

A filter removes the agglomerate of oil degradation which prevents thickening and restriction. Plugging things like lifter bleeds or servo passages and so on. 

 

A filter protects smaller failures from becoming larger failures. Flaking of a cam lobe from taking out a rod bearing, i.e. 

 

A mechanical units 'life time' is the measurement in some unit that matters to the designer before wear alters dimensions to the point they no longer function as the designer intended. 

 

This last point (bold) depends on not just it's design but on it's care and on it's use. The engineer only has control over the first, influence over the second and hope, at best, for the last.

 

That same bold paragraph means that dimensions dictate things like oil pressure, thus point of supply volume, cooling and sealing. So for the engineer failure is the point of specified oil pressure or cylinder leak down or maximum temperatures. 

 

For the end user that paragraph might mean when the compression is so low it will not start, the oil pressure takes out a major component or it boils oil or water dry. 

 

Ergo the LEDGENDS are born. I ran a crap filter for 200K and it ran just fine....:banghead:  When in fact three of the eight cylinders are more than 20% different, it uses a quart in 300 miles, there' s a lifter tick and a rod knock but darn boys, it starts and makes it to work. 

 

 

  • Like 1
Posted

Word of the day:

 

Agglomerate:  collect or form into a mass or group

 

 

 

:)

  • Thanks 1
  • Haha 1
Posted

My first house in Texas had a well. In some areas we’d have a slight sand problem. I added a filter. I started with the most bad ass filter. It didn’t go a week clogged up. My dilemma was good filtration versus wear to appliances. The goal was decent duty cycle verses water starvation. In an engine a restricted filter would mean bypass. I imagine there is such thing as too much of a good thing.


Sent from my iPhone using Tapatalk

Posted (edited)

Why does GM recommend the ACDelco PF63E for our trucks over of the arguably better ACDelco UPF63R?

 

Any thoughts?

 

 

No expertise implied or expressed

Edited by RWTJR
Posted
2 hours ago, RWTJR said:

Why does GM recommend the ACDelco PF63E for our trucks over of the arguably better ACDelco UPF63R?

 

Any thoughts?

 

 

No expertise implied or expressed

This is one of those times you have to ask what is meant by "Better" (and this always gets me in trouble). 

 

Mechanical construction? Yep, hands down stronger in every way. Is it required? Not really for hauling/towing. 

Filtering efficiency? :dunno: I can find no publish information on that specification. That said my gut says NO. Why? Because it is meant for service of a track day meaning flow takes priority over efficiency. That is but a guess and as a thought is but a guess I feel on solid ground. I would love to be proved in error with some data. ? 

 

 

Posted (edited)
4 hours ago, RWTJR said:

Why does GM recommend the ACDelco PF63E for our trucks over of the arguably better ACDelco UPF63R?

 

Any thoughts?

 

 

No expertise implied or expressed

i tore apart a few AC delco cheapo $3 filters, and have to say the quality is plenty good for 5000 miles of easy daily driving . not recommended for high revving race motors. but daily truck is great

 

i would focus on giving the transmission more in terms support and clean fluids and a bypass filter change every 10k

Edited by flyingfool
Posted (edited)
20 hours ago, Grumpy Bear said:

A mechanical units 'life time' is the measurement in some unit that matters to the designer before wear alters dimensions to the point they no longer function as the designer intended. 

Wear is an inevitable outcome of use, (Tribology basics for linear bearings).

 

GM and others have recently started removing dipsticks from transmissions and calling them "Lubricated for Life" or "Lifetime Fluids". It a funny term without a specific definition but industry wide it means that the device will not require lubrication service over it's......wait for it......."useful service life".

 

Tucked away in your glovebox is the owners manual with a service schedule that will instruct you to have it's fluid exchanged at a dealer at 95K miles under normal driving or 45K under severe service conditions. Well there's a tattletail if ever one I saw. 

 

  All 2020 Chevrolet and GMC cars, vans, crossovers and light-duty pickup trucks come with our Powertrain Limited Warranty, which is 5 years/100,000 miles(2) for customers(1) with a qualifying fleet account(s)(1), years/60,000 miles(2) for retail buyers and 5 years/100,000 miles(2) for HD diesel pickups. (GMfleet) 

 

And the last piece above indicates that the same vehicle will have a different warranty length and service schedule depending upon its.....USE....or service type. Which goes back to the first paragraph in this rant. 

 

Wear is in greater part a function of USE

To a lesser part functions of lubrication and filtration.

 

Useful service life for purposes of maintenance scheduling and warranty length is then determined by what the manufacture determines to be 'normal' and 'severe' use. Normal and severe is an indication of.......

 

Load and Speed

 

These numbers are not publicly available but they are a good deal higher than the majority of users will subject their machines to.

 

So that means the users that get 200K or 300K out of their machines have more to brag about in the way they USED the machine than the products they used to maintain it. 

 

 

image.png.eef53b0899217153c8bbb692c9c53a30.png

 

A sample calculation for a ball or roller bearing. Easiest one to get the noggin around. The L10 is the bearings 'designed service life'. P is the load and N is the speed. The lower those two numbers are the greater the length of service will be. Note the 'e'? That denotes than ANY reduction in load or speed in multiplied by a 'factor'..in the case of a ball for example, by a factor of 3. For a roller 3 to the 10th. For a sleeve bearing .....allot. 

 

While you watch this concluding video ask yourself if it was the Schaeffer oil, the service schedule or the use that permitted this motor to go a million miles and maintain new like dimensions and cleanliness. 

 

When Mobil did their million mile BMW on a roof top rolling road was it the oil or the use? 

 

 

 

 

 

 

 

 

 

Edited by Grumpy Bear
Posted (edited)
23 hours ago, flyingfool said:

holy smokes thats amaizing!!!!!!!!!!

Prisoner transport,  NCY Taxi Cabs and roof top million mile motors all have something in common. Very low loads and very rarely are they ever subject to a short heat cycle. 

 

People think a motor is up to heat when the thermostat opens. Not even close. The oil temperature must reach 175 F minimum and be held there for at least an hour. This time of year it might take 25 miles on the highway to just reach 175 F bulk oil temperature. 

 

A real sludge maker to miss that mark repeatedly. Tis why short oil change intervals and really REALLY good oil filters are more important to the inner city commuter than the traveling salesman. Oxides of Nitrogen have a hard time getting into the oil if it's temperature is above 175 and an hour there is long enough even at that low temperature to drive H2) down under 100 ppm. If the two can be kept separate then sludge and corrosion products generated by nitric compounds are limited. 

 

If you've ever had a thermostat fail open and found white foam in the filler cap or breathers you've observed the being of the end for the oil. Same thing can and will happen if the trip length is to short and the oil temperature to cool.

 

Oil companies pulling off these crazy long mileage claims under such ideal circumstances are playing on the ignorance of the public.

 

   

Edited by Grumpy Bear
  • Thanks 1
  • 2 weeks later...
Posted

 I AM Legend!! 

 

Note how nice this motor runs on the dyno then watch the tear down.

 

The USPS felt the OEM maintenance program was 'Good Enough"?

That the OEM choices of fluids and filters was Good Enough? 

 

In a private setting such an owner is now convinced for all time that this 'way' is the:

"End All, Be All"  

 

Take special note of the condition of the lifters and bearings in this motor.

Take note of the comments he makes about the cam.

Observe the timing chain.

 

Thing ran like a Swiss watch and quite as a mouse.

Had good compression pressure!!

Totally worn out.

 

This is exactly how people get convinced that the OEM filter and OEM oil changed at OEM OCI"s is the last word. 

It did make it out of warranty!

And into civilian life.

 

 

Posted
15 minutes ago, Steve-2019 said:

In your own mind....?

Didn't read the post and watch the video did ya?

Title isn't about me sport. 

Posted
1 hour ago, Grumpy Bear said:

 

The USPS felt the OEM maintenance program was 'Good Enough"?

That the OEM choices of fluids and filters was Good Enough?

 

If the point you're attempting to make is that the engine in this video is in such poor shape because it was maintained per OEM guidelines and fluids, I have questions.

 

What leads you to believe the USPS uses the OEM maintenance program and OEM fluid and filters? Additionally, is the maintenance program used during civilian ownership of this vehicle known? How many years with the USPS, how many as a civilian jeep?

 

I don't find using a 40 to 50 year old vehicle with an unknown maintenance history to be a compelling example of the failure of OEM fluids and filters to protect.

 

JMHO

No expertise implied or expressed

  • Like 1

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts
  • Member Statistics

    342,760
    Total Members
    8,960
    Most Online
    MASONV88888888
    Newest Member
    MASONV88888888
    Joined
  • Who's Online   1 Member, 0 Anonymous, 1,671 Guests (See full list)


  • Latest Articles

  • Posts

    • I’m definitely interested to hear the end result here. 
    • My 2025 Silverado 1500 had to receive a brand-new engine (long block) under warranty last month at only around 16,500 miles. Before the replacement, the truck repeatedly displayed "Engine Oil Level Low" warnings, even though the Oil Life Monitor still showed around 50% remaining after about 6,000 miles since my last oil change. After seeing the warning several times, I checked the dipstick with the engine cold, and the oil level was completely normal. The next day, the message escalated to "Add Engine Oil." At first, I assumed it was just a faulty oil level sensor, so I brought the truck to the dealership. After inspecting the engine, they found internal cylinder wall scoring and ultimately replaced the entire long block under warranty. Before this happened, I was planning to install a 4-inch lift and suspension upgrade on my truck. After needing a new engine at just 16,500 miles, I honestly don't see the point anymore. I also contacted GM to ask whether my vehicle qualified for a buyback, but I was informed that it does not at this time. Anyway, this experience has left me with serious concerns about the long-term reliability of this engine. I sincerely hope NHTSA expands the current investigation or recall to include 2025 model and performs a thorough inspection of affected vehicles. My biggest concern is that these engines may fail shortly after the powertrain warranty expires. If GM truly stands behind this engine, then at the very least, please consider extending the powertrain warranty to 10 years for affected owners. That would go a long way toward restoring customer confidence.
    • Without exception but then I'm the odd duck, right? I know what goes into that test, how it is calculated and thus how to beat it. But EPA values are often not beaten by the general public and the government has in past years adjusted the means and methods to come to those values to more closely approximate "Joe Average".    The only real trick to beating that EPA average is don't drive like "Joe Average".    It's the same method you used to profit from "Economic Migration" and in doing so beat the 'stats'. But you, like me, are not "Joe Average".     The thing you don't seem to grasp is this "Purchasing Power Index" isn't forward looking. It doesn't predict what it going to be but looks backward and states what it was. They are not telling us what the THINK, they are telling us what they MEASURED. Example:    Wife says "I'm going to lose 40 pounds by Christmas". May she does, maybe she doesn't but the doctors office who weighed her when she made that statement and again at Christmas only REPORTS what the RESULT was. You and I can banter about what was possible and what aunt Tilly did till the cows come home but the result is the result. Arguing otherwise is.....irrational. That's all I'm saying. This isn't about:      What you are calling a 'Statistic' is a RESULT not a CALCUATION and as a result the RULE. Like gravity as a rule, it can not be broken. 
    • Just wanted to say thank you for posting this. Years later, your thread is still helping Silverado owners.   I bought my 2025 Silverado 1500 in January 2025, and I've had what feels like the exact same rattle since day one. After reading your findings, I believe my truck has the same issue with the cable carrier contacting the rear sliding window. To be honest, I had pretty much given up on pursuing the issue. It wasn't until I recently drove another brand's pickup that I realized just how quiet their cabin was—and how noisy mine has been all along. On my truck, the rattle happens on almost any paved road, gets even worse on rougher pavement, and I can even hear it during braking and acceleration.   I actually referenced your thread when submitting my case to GM, hoping they'll recognize this as a recurring issue instead of treating it as an isolated incident. The reason I reached out to GM first is because my dealership told me they would need to keep the truck for at least two days just to diagnose the problem. I was concerned that even after two days, they still might not be able to identify the source of the rattle before giving the truck back to me. I had also asked a few dealerships about this issue during previous service visits, but none of them seemed to know what was causing it or had a solution. That's why I decided to contact GM directly first, hoping they might already have an official repair procedure or guidance for this issue.   I also hope GM eventually comes up with an official fix for this problem. I have a feeling there are many Silverado owners experiencing the same rattle, but most either choose to live with it or simply don't know what the cause is.   Really appreciate you taking the time to document your diagnosis. Your post is still making a difference years later.
    • I have 2 choices. 
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...