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Everything posted by Grumpy Bear
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We drove about 15 minute east today to visit a friend and saw a steep increase in price in the same county. About 50 cents a gallon steepper.
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Wow I'm in a pickle. (Broke down truck) and a story.
Grumpy Bear replied to Atlas's topic in The Off-Topic Bar
Sure about that? A degree wheel and a dial indicator would lower your degree of assurance in that statement. It why we have offset keys and dialable timing sprockets. Just say'n.... I've built a few and have never seen one "On the money". -
Some Assembly is Required
Grumpy Bear replied to Grumpy Bear's topic in Maintenance, Oils/Fluids, Detailing & Rust Prevention
Missing pieces of the Assembly Detergency vs Solvency Not the same thing. Detergency is the mechanism that surrounds solid particulates preventing amalgamation. Usually accompanied by a Dispersant whose job it is to keep those encapsulated particles in Suspension. Solvency keeps things that can be dissolved in solution. Salt is a solid that can be dissolved. Pepper is a solid that cannot be dissolved. A detergent/dispersant is effective on pepper but a solvent is more effective on salt. As long as the solids remain in either state, dissolved or dispersed then they can be be removed with the oil upon change. How many wranglers does it take to herd cats? Depends on how many cats your herding. How much sponge does it take to soak up water? How much water is there to soak up? Point is most oil blends start with some herding ability and next to zero sponge and recently even fewer wranglers are being sent to do the same job. So you start with a dozen cowboys and zero cows but at the drive progresses you pick up cows along the way, but not cowboys. At some point you have more cows that the wranglers can handle and some leave the herd. Deposits. And the API has an acceptable number of cows they are willing to let loose. In the ideal world zero is the right number for he rancher but to the butcher....a few lost is fine. This cow is beat to death. Let's move on.... Solvency isn't something oils on the Walmart shelf care about AT ALL. Problem is, you motor does. Fuels driven varnish sticks rings and only a solvent can keep them in check. The bet is that the solids driven portion that plug the expander rings and the oil drain backs and VVT screens and AFM screens will be an issue long before varnish is. Not that it wont be but if they market well enough the consumer can be kept ignorant enough to either believe it is "normal" (A quart in 1 or 2K is normal) OR is kept at bay longer than the first owner is likely to hang on to the unit. Solvency cost money. Now the OEM's have John Q. Public buffaloed into the belief that the number cows accumulated along the trail is a known and predictable CONSTANT. It isn't. Nor is the rate at which they crossed paths with them. Only the number of wrangles is constant. Or was. Each new generation of oil sees fewer and fewer of them. So what happens when the number of cowboys is lower (lower TBN) with each seasons trail but the trial is longer (OCI) and the number of cows along that trail continues increase? (Conditions that promote deposits). For awhile the blenders were on to something. Better bases are harder to degrade (fewer cows) but that was overtaken by a longer trail (OCI) and improved breeding (More cows) while continuing to reduce the cowboy staffing levels (TBN/Aniline #). Marketing has been successful. We've fired most of the staff, cows breed line bunnies, the trail is ten times longer and we've convinced the boss his ranch is in better shape that it ever was. That kids is just the cleaning side. The side few pay attention to. -
Saw Inglewood was in the National New last night for hail. Allot of hail. front end loader level hail.
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https://www.msn.com/en-us/news/world/is-the-world-experiencing-more-earthquakes-now-than-before/ar-AA2ahYqD
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$3.73 a few places. $4.49 few others and many in between.
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Breaking News! I'm going to tell you that I'm going to tell you. Then I'm going to tell you what I'm going to tell you. Then I'm going to tell you. Then I'm going to tell you what I told you. Then I'm going to tell you what I'm about to tell you on the other side of the break. Then we're going to break. Then I'm not going to tell you what I told you I was going to tell you. But I'll tell you something else that is Breaking News just coming to the desk that everyone reported on yesterday. Then I'll tease a human interest telling I'll get to on the other side of a larger break. Then I'll tell you one item in 20 seconds and go back to an even longer break. Longest break of the night. Then I'll tell you a fluff piece that takes 10 seconds and sign off into a three minute break while you wait for the next 30 minutes of rinse and repeat on the local news. In al you'll get about 12 minutes of something, 5 minutes of which is worth hearing in a 30 minute show and 18 minutes of advertising at a sound level twice as loud as the news. Of course you can switch to cable news and hear 12 different people tell the same four stories in much the same format as the Network News for 20 hours of which the majority will be advertising. And four hours of late night Specials about things you wonder why you stayed up to listen to. Half of which will be repeats..... OR you can go for a drive
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Some Assembly is Required
Grumpy Bear replied to Grumpy Bear's topic in Maintenance, Oils/Fluids, Detailing & Rust Prevention
Yes -
Some Assembly is Required
Grumpy Bear replied to Grumpy Bear's topic in Maintenance, Oils/Fluids, Detailing & Rust Prevention
He is not saying that an SAE *W20 will have more viscosity than a *W40 due to MORE VII polymers. He is saying that although multiple *W40 may post in the PDS the same or similar 100 C and 150 C viscosities that the blenders choice of modifier TYPE and AMOUNT to get his chosen base to grade will not give identical real world viscosities in shear and at temperature. All will pass the SII test but not all will pass the 100 C HTHS (unpublished value) testing the blender does and relies on to get the required by law "percentage improvement' referenced to his last great work. Tis the problem with the lie. Once told others are required to support it. -
Some Assembly is Required
Grumpy Bear replied to Grumpy Bear's topic in Maintenance, Oils/Fluids, Detailing & Rust Prevention
www.enginelabs.com/news/what-i-learned-today-bearing-clearances-vs-oil-viscosities/ www.enginelabs.com/news/oil-viscosity-can-the-numbers-be-misleading/ The Big Lie… Coming full circle to the reason Lake discusses the Porsche engines in particular. Based on the 2000 samples in the SPEEDiagnostix database, increasing the oil viscosity in these engines, even those run on the track, showed no significant difference in results. The smoking gun was in the oil chemistry. That is where the data shows higher instances of more wear. Molybdenum was the key; the higher the amount, the less the wear. Speed postulates that higher viscosity oils have more thickeners to artificially inflate their viscosity numbers. These thickeners lose viscosity under shear, and the result is that not all oils of the same viscosity have the same shear stability. Having enough viscosity is the most important characteristic, but according to Speed, once that required viscosity level is reached, additive chemistry matters more than additional viscosity. Speed also states, oil pressure problems on the racetrack aren’t a viscosity problem; it’s an oiling system problem. Running a thicker oil is just a band-aid for an underlying oiling system problem. -
Some Assembly is Required
Grumpy Bear replied to Grumpy Bear's topic in Maintenance, Oils/Fluids, Detailing & Rust Prevention
Can it still be Assembled II? Viscosity on the decline by various means. Heat on the rise making that worse. Engine RPM in the tank. Smaller motors with more boost trying to emulate an electric motor. Full torque, zero rpm. Then we will triple the OCI. Argh. But wait....there is more. LSPI has pushed a shift from Ca to Mg and as that cost more PLUS the run to lower sulfur compounds the TBN is moving in the wrong direction for the increased OCI's demanded. That not being enough to placate a demand for a parameter they can't measure the other sulfur bearing compounds are also under attack. That would be zinc and phosphorus sulfonate compounds. To some degree those are being replaced with boron esters and others, i.e. titanium ect. All of which have shorter service lives. And there there is the "Secrete Sauce" marketing for AW adds that 'Can't be detected by UOA's" but trust me because I (the blenders) never ever lie. Spoiler alert; ALL additives are sacrificial! Smaller amounts of the old blended with less robust versions of the new do not equal longer service lives. So what are the blenders recommending? Wait for it....... MOVING THE GOAL POSTS! OMG Let's declare the long standing TAN/TBN crossover irrelevant and tell people that soot is a great 'graphite' based lubricant which can aid tribo films. Wait, what? Let's declare that the standards used for oxidation and nitration were to conservative and can be expanded. Let's tell them that because GDI fuel dilution, although being a VISCOSITY KILLER and an acid generator is actually okay because we have better base oils that limit viscosity failure limits. (Said knowing this is measured in fractions of a centipoise and in bases not commonly used in shelf oils) Lying from the heart is not just the new normal but we have a public, a very young public, that is so ignorant of the facts and so sure of their "RESEARCH" into AI driven models base in regurgitated instead of scientific research based unvarnished, peer reviewed FACTS that the incoming guard is loosing their grip on reality and the OEM's are tickled pink while the blends bend the knee. You have an ever limited set of tools to work with. And sooner or later those will be taken from you as the API and the EPA strangle the last remaining fluids from the system. What you have left is your wits. If you care to use them. At some point in the very near future it will not longer be possible to do "What is best for the machine", and be replaced with "The best you have access too". You WILL be rewarded with half the life and twice the cost. That isn't that hard to predict. -
The guy that owns K&P filters last I checked in with him has over 300,000 miles on his Dodge base Hemi using his own 35 micron absolute stainless mesh filter from its first oil change. The GM study I've posted a dozen times shows the relationship in engine life based in multiples of base units, not miles or years. That is the base unit is the number of miles the motor ran using the reference filter efficiency. The above two paragraphs dismantle anecdotal arguments IF one changes oil often enough to prevent particle formation and the motor is in otherwise good shape. That is not full of silica (no air filter) or suffering a metallurgical issue that is not part of the lubrication discussion. Poor heat treat in example. Data from UOA's I've reviewed from more than a few engines can show remarkably broad variations in oil cleanliness using the exact same filter over the course of an engines life. Lastly there is the common sense of it. Wear debris WILL circulate the engine BEFORE it ever sees a filter in route to that filter and WILL harm the pump which NEVER sees filtered oil. Alpha question then becomes, given the facts, how long do you believe is a reasonable service life from a vehicle you are certain you will not pass down? That is the junk yard will be it's resting place when you're done with it? (the moral issue most don't care about). Omega question is then how diligent are you prepared to be in general mechanical, air & oil maintenance? Preventing particulates and keeping them sufficiently dilute; preventing the precursors from generation, amalgamation and precipitation. If I get a good look at the engine bay of a vehicle I have a fair idea of the owners commitment to the inside of the power train. That 30 micron WIX is still more efficient than a sieve.
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As Dyson used to say, like a screen door on a submarine. And how many motors have you had in continuous daily service for 15/20 years? Or are you saying of all the motors you've owned in 15/20 years, none have blown? Devil is in the details. Uncle Garry put a million miles on a Isuzu diesel delivery truck shagging parts for White Freightliner in two years without a single major repair. My mother didn't put 100K on the sum total of her lifetime of driving in 7 decades. She managed to kill every car she every drove, about a dozen. Literally. Context. It's the problem with anecdotal evidence.
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Sugar Bears 2015 GMC Terrain SLE-2 2.4 AWD
Grumpy Bear replied to Grumpy Bear's topic in Member Build Threads
287,500 Mile Service 8/13/2026 Reset Fuel Trims Since the work done in the previous post there was a good improvement in response in all areas except right after a fill up where the LTFT would go -20%+ for about four miles while the STFT was near neutral. Before the work they both went very negative for a few miles after a fill up but act normal thereafter. We did a systems check of the vapor recovery system for functionality and ability to hold a vacuum. That checked out fine. But this doesn't mean the charcoal canister is dead in the water. Testing that is next up. For now the reset of the fuel trims. I intentionally shorted the fill exactly two gallons to eliminate any chance of filling the canister. On start up the trims were behaving normally until I got up and rolling where the LTFT went -10 / -11%% but the short was + 2 to 0%. Within a mile the the STFT offset the LTFT and by 2 miles they were neutral. HUGE improvement but still not hunky-dory. I'll watch them for a few days. Perhaps another tank where I will fill completely to 'first click' and compare. Meanwhile on the hunt for a new canister and I'll toss another purge value at it for good measure. Pending the outcome of the canister test that is. Progress of any kind is welcome. Fuel economy improvement with bringing hole #3 back to the living was a noticeable bump to the positive. Even on the few miles I drove after the refill I already see another bump up by the trims reset. She's purring like a kitten with a warm bowl of milk. BTW, adding 50 rpm to the idle took the majority of the negative timing out on cold start up and leaned the cold idle. No longer burbles in the cat. What a dumb way to heat a cat. -
True Dat!
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$3.77 today at several stations.
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Why does Mobil Premium cost 90 cents a gallon more than Shell Premium when their regular offerings are but pennies apart?
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196,585 Mile Service 8/9/2026 4,085 mile OCI 6 quarts Mobil 1 Euro 0W40 FS 1 Purolator PL22500 200K or bust.
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You don't want to become predictable now, do you?
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I reported it. Your welcome.
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How did all that extra get added? AI bot!
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OCI, not when but why?
Grumpy Bear replied to Grumpy Bear's topic in Maintenance, Oils/Fluids, Detailing & Rust Prevention
10 Ford and Chevy engines proven to reach 300,000 miles You may note a common 3K OCI on this list of gas motors. I skipped over the diesels. Dh'O.
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