Walmart/Amazon selling lesser quality tires under same listing?
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Intel publicly acknowledged doing a similar thing with their CPUs (many, many years ago). This is the simplified version but basically when they produced a CPU, they tested it extensively to determine what Ghz to sell it as. Some ended up as 3.6 Ghz, others 3.2 Ghz, others 2.8 Ghz, and so on. Apparently this is just a side-effect of chip production.
I'm not so sure why those processors were so wide in frequency rating. But the manufacturing of the wafer is both really precise (small lithography) and not all that precise. 20% tolerances is not unheard of on components that are fabricated in the silicon (depends on what is being made). I'm guessing, small shifts in doping levels would cause transistors to switch slower and/or drive lines slower, causing the issues.Intel publicly acknowledged doing a similar thing with their CPUs (many, many years ago). This is the simplified version but basically when they produced a CPU, they tested it extensively to determine what Ghz to sell it as. Some ended up as 3.6 Ghz, others 3.2 Ghz, others 2.8 Ghz, and so on. Apparently this is just a side-effect of chip production.
Perfect case of having multiple output bins after testing. Multiple good bins, same wafer, same sort of assembly, but different p/n's being sold as a result.
JHZR2
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Agree. My understanding is that the low price tires are often prior-gen technology. Nothing wrong with it, just not the latest stuff.
Other store brand stuff can be equivalent quality generic, or much poorer.... rare to find something much better, though in some cases one might like the generic more...
Trailer tires are ten times more abused and neglected than automotive tires-and quite frankly are not a good example. I have run (several brands of) "China Bombs" thousands of miles that others claim should blow up at the first stretch of highway.
Thanks Capri.
I've done the same with making some china bombs last, but I was staying mostly local with friends only a phone call away if 2 did pop(always carried 1 spare). I had intentions of doing some long hauls on weekends on expressways where those china bombs strike. Most don't follow the speed ratings of the china bomb... 60mph is their usual rating, so they'll mess up bands then get hot spots and blow apart. Atleast that's what I've ran into.
I put a pair of Hi-Run WD1133 tires from Tractor Supply Company on the front of my Kubota diesel tractor the end of last summer, and they are running great. Made in China. These are 4-ply tires and I run them at 22 PSI. They look identical to the original tires, tread pattern is identical and they were less than $29 each on sale at TSC with a stacking coupon. Even their regular online price is half what they sell for in the store. There are some good Chinese utility type tires. They still have the nubs on them. It was free shipping if you ordered online and pick up in the store.
If the same number they are the same tire.
They do sometimes offer "special" tires. For instance the Cooper AT (USA) is the previous generation AT3 that's a Walmart exclusive that's actually been slightly improved in some cases (P275/65R18 114 is now a 275/65R18 116 for instance). In my opinion it's a superior tire to the Cooper ATT (Chinese) you get elsewhere for a similar price.
They do sometimes offer "special" tires. For instance the Cooper AT (USA) is the previous generation AT3 that's a Walmart exclusive that's actually been slightly improved in some cases (P275/65R18 114 is now a 275/65R18 116 for instance). In my opinion it's a superior tire to the Cooper ATT (Chinese) you get elsewhere for a similar price.
Similar thing happened with windscreen wipers. The wipers that had small defects, usually with lacquer, but were otherwise serviceable didn't go to car manufacturers but got sold in stores.
We should probably clarify that there’s no difference between the Mobil 1 sold at Walmart vs. Mobil 1 sold anywhere else, lest someone who doesn’t know you’re joking see this and think you’re serious.Let's not forget that the Mobil One at Walmart is different than sold elsewhere.................
who knows... maybe the mobil1 gets sorted coming off the bottling line etc... 
I Read all this attentively.
I think the "unsupported" toaster oven and "last year's" model tire (identical or improved) addresses the issue which began this thread.
Nobody cares if a toaster lasts 5 years or 8.
As stated above, Walmart (or any other outlet) wants the legal protection of all the good "last year's tires" performance data.
Now when Costco made Nonni cheapen their Panatinis.....well, that was too much.
I think the "unsupported" toaster oven and "last year's" model tire (identical or improved) addresses the issue which began this thread.
Nobody cares if a toaster lasts 5 years or 8.
As stated above, Walmart (or any other outlet) wants the legal protection of all the good "last year's tires" performance data.
Now when Costco made Nonni cheapen their Panatinis.....well, that was too much.
Well...no. For SOME products, it absolutely is true. Mostly electronics...sometimes having the model number with "WM" in it is their dedicated model. For computers, it depends what you want...directly from a repair guy, he has no hesitation to start with a WM laptop: the hardware is usually the same (hardware is cheap enough now it's not worth two different specs), but the SOFTWARE is often different. Since he usually is installing new software, he does not care.
The local Walmart doesn't sell the English muffins I like.
Thats true I bought 4 tires from walmart maybe 8 years ago and about years later i needed new break lines on my car and my mechenic pointed out to me that 1 tire was 11 yrs old and another was 7 yrs old He showed me how to read the date code on a tire. I went back to complain and they would not do anything 4 me I still shop there but not for tires
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