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Re: Walmart Oil Change? [Re: spk2000] #5326024 01/18/20 08:50 AM
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JohnnyJohnson Offline
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Originally Posted by spk2000
Walmart now does vacuum up the diptstick tube only.


LOL they got tired of replacing drain plugs they lost. Yes one time on vacation WM changed my oil it took them over two hours. When we got back from the Gulf a I changed my oil again I had some real funky drain plug it sure wasn't my stock Duramax plug. Made in China.


2004 Corolla 139577
Out: Havoline Pro DS 10w-30 Purolator PureOne 10-29-19 136457
In: Pennzoil Platinum HM 5W-20 ST 4386
2006 Duramax 77060
Out: T6 5W-40 XG9100 73909
In: Rotella Dino PH9100 11-3-19
Re: Walmart Oil Change? [Re: Talent_Keyhole] #5326105 01/18/20 10:15 AM
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hallstevenson Offline
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Why include "Walmart" in the subject or even refer to it ? Everything you mention pertains to all oil changes, even "perfect" ones that people DIY.

That said, you're seriously overthinking this. Tell you daughter everything's fine and to change it when the OLM tells her to. I presume it goes 5000-8000 miles typically ?

Re: Walmart Oil Change? [Re: hallstevenson] #5326110 01/18/20 10:21 AM
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JohnnyJohnson Offline
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Originally Posted by hallstevenson
Why include "Walmart" in the subject or even refer to it ? Everything you mention pertains to all oil changes, even "perfect" ones that people DIY.

That said, you're seriously overthinking this. Tell you daughter everything's fine and to change it when the OLM tells her to. I presume it goes 5000-8000 miles typically ?


Or the no brainer is change you OCI's to April and October and it just is no longer a issue unless you live in an ice zone.


2004 Corolla 139577
Out: Havoline Pro DS 10w-30 Purolator PureOne 10-29-19 136457
In: Pennzoil Platinum HM 5W-20 ST 4386
2006 Duramax 77060
Out: T6 5W-40 XG9100 73909
In: Rotella Dino PH9100 11-3-19
Re: Walmart Oil Change? [Re: JohnnyJohnson] #5326146 01/18/20 11:05 AM
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hallstevenson Offline
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Use a garage ? Even an unheated one will be warmer than directly outside. Our garage maintains 50-55º F if the outside temperature is in the 30s. Or, waiting a week or even a thousand miles for a bit warmer weather isn't going to make a difference. No car needs the oil changed right now.

Re: Walmart Oil Change? [Re: hallstevenson] #5326157 01/18/20 11:13 AM
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SatinSilver Offline
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Originally Posted by hallstevenson
That said, you're seriously overthinking this. Tell you daughter everything's fine and to change it when the OLM tells her to. I presume it goes 5000-8000 miles typically ?


Agree the oil will be fine. I'd recommend to check the oil level every two weeks or so. And top off if necessary of course.

I'm considering having WM TLE do the next oil change. I don't think they always use the extraction method for oil changes. Prob depends on the car, how busy they are, who's doing the oil change, etc. Plus you can easily stand in the vicinity and watch them. I've had pretty good luck there. Name brand oil and filter for $20. They check the oil level before doing the oil change service and notate it on a report.

Re: Walmart Oil Change? [Re: Talent_Keyhole] #5326164 01/18/20 11:22 AM
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OVERKILL Offline
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You are greatly over-thinking this.

Oil by itself doesn't go bad. It gets diluted with fuel, wear metals, combustion byproducts...etc and is required to keep acids neutralized and those contaminants in suspension. As long as those things can be done successfully, it will continue to be serviceable. When you change the oil, a small amount of residual lubricant, laden with the amount of contaminants that was consistent with the entire sump contents before it was changed, remains. Note that you've removed >80% of those contaminants with the change. Upon fire-up with fresh oil, those contaminants are immediately diluted in the new oil and cease to become relevant. Then the process repeats as the engine is operated. As long as the lubricant is not operated beyond its ability to perform those tasks, you will not experience sludge or other negative consequences.


2019 RAM 1500 Sport - Mobil 1 EP 0w-20, FRAM Ultra
2020 Grand Cherokee SRT - Ravenol SSL 0w-40, FRAM Ultra
Re: Walmart Oil Change? [Re: Talent_Keyhole] #5326206 01/18/20 12:09 PM
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csandste Offline
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Wal-Mart is scrupulous about putting in the exact called for amount of oil, even charging my girl friend for the extra tenth of a quart, 5.1. Always slightly over filled cause filter is smaller than OEM and they're in a hurry. No big deal.


2017 Kia Soul+ Valvoline Daily Protection 5w30+ a bit of Harvest King syn 5w30-- 75,000 miles
Re: Walmart Oil Change? [Re: spk2000] #5326240 01/18/20 12:42 PM
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FordBroncoVWJeta Offline
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Originally Posted by spk2000
Walmart now does vacuum up the diptstick tube only.

Not true. They actually trying to stay away from it as it takes too long. Depending on the store of course. My store we pretty much disabled the EVAC because it took way too long.


2017 Volkswagen Jetta 1.4T - 2015 Honda CRV 2.4 - 2012 Volkswagen Jetta 2.0 - 2007 Chevy Trailblazer 4.2 - 2003 Ford Taurus 3.0 Vulcan
Re: Walmart Oil Change? [Re: Talent_Keyhole] #5326273 01/18/20 01:21 PM
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Rolla07 Offline
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Whens the last time you killed an engine before scrapping a car?


2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967
2015 Toyota Venza Parisian Blue Pearl 25k miles
TGMO 0W20 & OEM filter

Re: Walmart Oil Change? [Re: Lubener] #5326279 01/18/20 01:25 PM
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Talent_Keyhole Offline OP
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Originally Posted by Lubener
Originally Posted by tundraotto
You need to worry about new things. Oil is fine.

+1


How would you know the oil is fine? Would retention of 5ppm of iron wear, loss in viscosity, fuel dilution, loss in TBN within minutes of mixing of oil is not a concern?

Re: Walmart Oil Change? [Re: spk2000] #5326282 01/18/20 01:28 PM
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Talent_Keyhole Offline OP
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Originally Posted by spk2000
Walmart now does vacuum up the diptstick tube only. So depending on the vehicle some are better suited for this than others. I tried my own vaccum oil out the dipstick tube on my old 93 Honda Civic and could only get 1 qt out. Theirs is probably better than that but you also have to consider who is doing it and are they in a hurry to get to break or off work or finish up so they can sit. You just never know unless you can watch them.


The two Walmart's in my area do not use vacuum extraction. They still spill and fill.

Re: Walmart Oil Change? [Re: Talent_Keyhole] #5326285 01/18/20 01:32 PM
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OVERKILL Offline
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Originally Posted by Talent_Keyhole
Originally Posted by Lubener
Originally Posted by tundraotto
You need to worry about new things. Oil is fine.

+1


How would you know the oil is fine? Would retention of 5ppm of iron wear, loss in viscosity, fuel dilution, loss in TBN within minutes of mixing of oil is not a concern?


No, it's not a concern. Say you have 5ppm of Fe. That's 5ppm over the entire sump volume. You remove >80% of that doing a change so you'd have at most 1ppm in the fresh fill. TBN would be at close to virgin...etc. You are talking an extremely small amount of already dilute product in the volume of used oil being mixed with entirely fresh, diluting it to the point of irrelevance.


2019 RAM 1500 Sport - Mobil 1 EP 0w-20, FRAM Ultra
2020 Grand Cherokee SRT - Ravenol SSL 0w-40, FRAM Ultra
Re: Walmart Oil Change? [Re: Talent_Keyhole] #5326286 01/18/20 01:32 PM
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PimTac Offline
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You are definitely worrying too much about this. However, if that oil is vile then I would change it.


2017 Mazda CX5
Valvoline Advanced Synthetic 0w20
Roki OEM filter.
Re: Walmart Oil Change? [Re: hallstevenson] #5326288 01/18/20 01:34 PM
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Talent_Keyhole Offline OP
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Originally Posted by hallstevenson
Why include "Walmart" in the subject or even refer to it ? Everything you mention pertains to all oil changes, even "perfect" ones that people DIY.

That said, you're seriously overthinking this. Tell you daughter everything's fine and to change it when the OLM tells her to. I presume it goes 5000-8000 miles typically ?


Because I can....

Really, "overthinking". Would retention of 5ppm of iron wear, reduction in viscosity, fuel dilution, decrease in additives and loss of TBN within minutes of running the engine is not a concern. The last time I checked OLM do not monitor actual oil quality. Maybe someday they will detect fuel, and viscosity, soot levels, etc.

Correct, presumption. The OLM was at 10% after only 2900 miles,

Re: Walmart Oil Change? [Re: hallstevenson] #5326292 01/18/20 01:40 PM
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Talent_Keyhole Offline OP
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Originally Posted by hallstevenson
Use a garage ? Even an unheated one will be warmer than directly outside. Our garage maintains 50-55º F if the outside temperature is in the 30s. Or, waiting a week or even a thousand miles for a bit warmer weather isn't going to make a difference. No car needs the oil changed right now.


How would you know that NO car needs a change RIGHT NOW? Some people do not have access to a garage? Interesting that you want to argue about the urgency of the oil change, but not the contamination of the new oil.

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