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Re: One more bite at the 5w20 v. 5w30 debate: [Re: 4WD] #5160369 07/14/19 11:20 AM
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Triple_Se7en Offline
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Global is good. Did Trump build a wall that locked Walmart into the USA?
Go Supertech. Make millions in profits.


Now please, lets get back to the 5W20/30 debate. I'm biting my nails, seeking more replies. Good topic of discussion.

Last edited by Triple_Se7en; 07/14/19 11:30 AM.

19 Hyundai SantaFe 2.4GDI Castrol Edge 5w30 / NAPA Mann-Hummel filter / 6oz Liqui-Moly Treatment
04 Colorado 3.5 Castrol Edge 0W40 Euro & K&N filter
03 Malibu 3.1 QS / Valv Syn 5w30 mix Fram EG filter
Re: One more bite at the 5w20 v. 5w30 debate: [Re: Triple_Se7en] #5160373 07/14/19 11:24 AM
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4WD Offline
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Not sure you understand … I buy motor oil from XOM, RDS, CVX, etc … regardless of point of purchase …

Re: One more bite at the 5w20 v. 5w30 debate: [Re: 4WD] #5160376 07/14/19 11:28 AM
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Originally Posted by 4WD
Not sure you understand … I buy motor oil from XOM, RDS, CVX, etc … regardless of point of purchase …

OK..... are the packages rainproof / salt-proof? Does your imported oil purchases ever get sea-sick and throw up / leak?

Am I starting to understand your buying M.O's better now?


19 Hyundai SantaFe 2.4GDI Castrol Edge 5w30 / NAPA Mann-Hummel filter / 6oz Liqui-Moly Treatment
04 Colorado 3.5 Castrol Edge 0W40 Euro & K&N filter
03 Malibu 3.1 QS / Valv Syn 5w30 mix Fram EG filter
Re: One more bite at the 5w20 v. 5w30 debate: [Re: csandste] #5160379 07/14/19 11:33 AM
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aquariuscsm Offline
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My rationale. I will only buy name brand oil and oem filters because yeah,house/generics may be equally good,but I'll splurge a buck to put name brand on/in my $30K machine.


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Quaker State Ultimate Durability 5W20

Re: One more bite at the 5w20 v. 5w30 debate: [Re: demarpaint] #5160381 07/14/19 11:36 AM
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Originally Posted by demarpaint
Originally Posted by Cujet
Let's look at the problem of premature wear objectively. Manufacturers have produced engines with highly loaded, but relatively low quality, components for well over 100 years now. The classic flat tappet example is the one most commonly cited. Flat tappet engines survive due to sufficient viscosity, very modest oil temperatures, robust additive packages and so on. Chevy V8 timing chain wear is another classic example. Where the aftermarket industry created all sorts of products to mitigate premature failure in anything more than pedestrian use. (oil viscosity and oil change interval are key components here)

Today, nearly all engines use the very same timing chain designs used by Chevy 60 years ago. And the very same lubrication requirements exist. ie, clean oil of sufficient viscosity is important. (Chains last longest with 30 viscosity oil)

Modern engines are still very conventional engines and our great grandfathers would instantly recognize the working parts. Such as 3 ring high compression pistons, cast iron bores, very highly loaded connecting rod bearings, camshafts driven by long chains and camshafts operating flat or roller followers.

It's no surprise that when minor design issues exist, a contaminated thin oil is not up to the task and the result is often premature wear.

Ford's 5.4L is a great example of what happens to an engine when the oil is so thin it escapes out of the oil pump backing plate and under the timing chain tensioners, leading to near complete oil starvation on the Left cylinder head. Is it a bad design, or does the engine design simply require sufficient viscosity to maintain oil pressure? Maybe that depends on whether you want to spend $3K installing aftermarket parts which allow the use of thin oil. I choose 10W-30 M1 High Mileage w/5K OCI's. It's no surprise I'm having no troubles.

It's no surprise that BMW and Hyundai both have similar looking con rod bearings.


[Linked Image]

It makes me wonder, I bet it's a combo of the thinner oil and reduced ZDDP. hide


So glad Redline has a higher ZDDP ppm. Should be using a stout 5w30 in winter/5w40 in summer.


15' Civic 1.8 i-vtec 270,000 mi Redline 0w20, BP CVT Fluid, Archoil9100, Si-1
Doberman Whisperer!
Redline Oil,Honda,Doberman,CZ & SONY Aficionado

Re: One more bite at the 5w20 v. 5w30 debate: [Re: Triple_Se7en] #5160384 07/14/19 11:38 AM
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4WD Offline
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No, nothing I buy is imported … talking about who I prefer to give my business to. Major oil companies …

Re: One more bite at the 5w20 v. 5w30 debate: [Re: csandste] #5160388 07/14/19 11:41 AM
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csandste Online Content OP
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As the OP, I'm still torn on weights. I have no problem with house brands. Always good luck with any WPP oil. Paying advertising overhead is a negative as far as I'm concerned. That being said, the coupon says Valvoline, so Valvoline it's going to be. If the coupon said one of many Valvoline house brands, that would be good too.

Last edited by csandste; 07/14/19 11:43 AM.

2017 Kia Soul Plus-- VWB 5w30 65,000 miles
Re: One more bite at the 5w20 v. 5w30 debate: [Re: aquariuscsm] #5160394 07/14/19 11:46 AM
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csandste Online Content OP
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Originally Posted by aquariuscsm
My rationale. I will only buy name brand oil and oem filters because yeah,house/generics may be equally good,but I'll splurge a buck to put name brand on/in my $30K machine.


I've become financially secure by never splurging on anything. Grandpa told me the depression was coming back and I've always lived accordingly. If I was going to splurge, it wouldn't be on oil. Beer, sausage and tv sets don't have API ratings.


2017 Kia Soul Plus-- VWB 5w30 65,000 miles
Re: One more bite at the 5w20 v. 5w30 debate: [Re: csandste] #5160400 07/14/19 11:49 AM
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csandste Online Content OP
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I intend on making my weight decision and announcing it by the time this thread hits the bottom of the display stack. Let's have more weight debate.


2017 Kia Soul Plus-- VWB 5w30 65,000 miles
Re: One more bite at the 5w20 v. 5w30 debate: [Re: csandste] #5160407 07/14/19 11:55 AM
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There was a previous reference that I'm unsure of.

My comment was less VI, more oily goodness.

The response was to HTHS. HT means high temperature. I thought that less v.i. meant that the base 5w oil was a bit better because oil trumps viscosity improvers in cold oil when you start it up. I remember similar arguments 25 years ago: 10w30 was better than 5w30 because all that VI ultimately led to shearing. Of course all 5w oils are much better than they were in the early nineties. But .... is there still a bit of truth in that the smaller the difference between the first number and the second number the more stable the whole thing is? Or, does that apply only if there's not a lot of gas from the gdi in the mix?

Last edited by csandste; 07/14/19 11:56 AM.

2017 Kia Soul Plus-- VWB 5w30 65,000 miles
Re: One more bite at the 5w20 v. 5w30 debate: [Re: Triple_Se7en] #5160412 07/14/19 12:01 PM
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Originally Posted by Triple_Se7en
Originally Posted by 4WD
Not sure you understand … I buy motor oil from XOM, RDS, CVX, etc … regardless of point of purchase …

OK..... are the packages rainproof / salt-proof? Does your imported oil purchases ever get sea-sick and throw up / leak?

Am I starting to understand your buying M.O's better now?




👹


2017 Mazda CX5
Havoline Pro DS 0w20
Roki OEM filter.
Re: One more bite at the 5w20 v. 5w30 debate: [Re: csandste] #5160413 07/14/19 12:01 PM
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Originally Posted by csandste
I intend on making my weight decision and announcing it by the time this thread hits the bottom of the display stack. Let's have more weight debate.

This thread is the very definition of a troll and your post confirms it.


1994 BMW 530i, 246K
1996 Honda Accord, 280K
1999 Toyota Sienna, 420K
2000 Toyota ECHO, 281K
Re: One more bite at the 5w20 v. 5w30 debate: [Re: csandste] #5160424 07/14/19 12:08 PM
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Mainia Offline
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Hyundai has issued a TSB on going up from 5w-30 on it's 2.0T with an option with no specs/certs on a mandatory 5w-40 oil. Seems they are now a "Tricky" on the 2.0T because of oil boundary layer issues.

Re: One more bite at the 5w20 v. 5w30 debate: [Re: csandste] #5160437 07/14/19 12:18 PM
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aquariuscsm Offline
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20W50,end thread. drive


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Quaker State Ultimate Durability 5W20

Re: One more bite at the 5w20 v. 5w30 debate: [Re: csandste] #5160440 07/14/19 12:22 PM
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csandste Online Content OP
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This thread started out quite well...

Still looking for weight insights. Please, no more brand discussions, import bashing, troll accusations, etc.

Really looking at making the decision between 5w20 and 5w30.


2017 Kia Soul Plus-- VWB 5w30 65,000 miles
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