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QS Ultimate Durability 5w30 #5277937 11/26/19 12:54 PM
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Doublehaul Online Crying OP
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Im interested in the QS powertrain warranty and buyback program for my Taco and 4Runner. I emailed them and included a copy of Toyotas verbiage allowing a thicker oil than 0w20 and they said in writing they will honor the warranty and buyback with the use of 5w30.

That said I've not used QS full synthetic before and I'm curious as to how the 5w30 version holds up. Use will be 10k oci in both vehicles. Is this formulation pretty fair in terms of piston deposits and varnish protection etc? Any ida on a HTHS?


2019 Toyota 4Runner 4x4 TRD
2019 Toyota Tacoma 4x4 TRD*

Mobil 1 0w40


The specs on the back are more important than the label on the front
Re: QS Ultimate Durability 5w30 [Re: Doublehaul] #5277967 11/26/19 01:28 PM
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ad244 Offline
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It will be exceptional in your application

Last edited by ad244; 11/26/19 01:29 PM.
Re: QS Ultimate Durability 5w30 [Re: Doublehaul] #5278019 11/26/19 02:09 PM
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Danno Offline
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Where is "icebox of the nation" ?
Could make a difference on the 5W equation.


2019 Jeep Grand Cherokee Summit 5.7L Hemi
2019 RAV4 Limited Hybrid
2016 Sorento SX V6 AWD
2010 Mazda 3 2.0L
Re: QS Ultimate Durability 5w30 [Re: Danno] #5278100 11/26/19 03:35 PM
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Mad_Hatter Offline
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Originally Posted by Danno
Where is "icebox of the nation" ?
Could make a difference on the 5W equation.

Fargo???

[Linked Image]

Re: QS Ultimate Durability 5w30 [Re: Doublehaul] #5278106 11/26/19 03:48 PM
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Char Baby Offline
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QSGB & QSUD have become my new go to and maybe even my favorite oils. I've also used QS Defy & QSHM. I love how quiet my engines are with QS oils. Not that other oils didn't however, some oils actually made my engines more audible til the next OCI.

Last edited by Char Baby; 11/26/19 03:51 PM.

"Retired"
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic 1.8 LX
Re: QS Ultimate Durability 5w30 [Re: Doublehaul] #5278108 11/26/19 03:53 PM
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Silverado12 Offline
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If I were in a cold climate I would just use 0W-20. That's what I use in my wife's 2018 Jeep Cherokee 2.4 and it seems to work well. I change it 5-6K miles.


12 Chevy Silverado ext. cab LS, 2WD 4.3 auto
18 Mustang GT 5.0 auto
07 Harley Dyna Street Bob 96 c.i. 6 sp.
00 Mustang GT auto
Re: QS Ultimate Durability 5w30 [Re: Doublehaul] #5278172 11/26/19 05:04 PM
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incognito_2u Offline
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Using it in my 98 Corolla as we speak.......good oil (SOPUS).......great price! laugh


2006 Jeep Commander 3.7 V6 -115k (M1EP5W30/XG3600)
2006 Toyota Corolla 1.8 VVTi -84k (M1EPHM5W30/XG3600)
1999 Toyota Corolla 1.8 -88k (PUP5W30/XG4386)
1998 Toyota Corolla 1.8 -67k (QSUD5W30/XG3600)
Re: QS Ultimate Durability 5w30 [Re: Doublehaul] #5278224 11/26/19 06:06 PM
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bbhero Offline
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Originally Posted by Doublehaul
Im interested in the QS powertrain warranty and buyback program for my Taco and 4Runner. I emailed them and included a copy of Toyotas verbiage allowing a thicker oil than 0w20 and they said in writing they will honor the warranty and buyback with the use of 5w30.

That said I've not used QS full synthetic before and I'm curious as to how the 5w30 version holds up. Use will be 10k oci in both vehicles. Is this formulation pretty fair in terms of piston deposits and varnish protection etc? Any ida on a HTHS?


HTHS is likely 3.1-3.2 like many Dexos Gen 2 approved oils... Just fine.

Being Dexos approved it has to meet tougher specs for piston deposits and keeping varnish down...

Being that you are in such a very cold area the question of short trips enters my mind... If that is a yes for a answer then I would not go for a long run of 10k miles. But that's just my way of thinking.

QS has a decently high molybdenum and high boron additive package.


Nissan Altima 3.5 Coupe
Napa full synthetic 5w30 Wix 57356 Oil filter
"Treat your family like your friends and treat your friends like your family."
Re: QS Ultimate Durability 5w30 [Re: Doublehaul] #5278392 11/26/19 09:11 PM
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kstanf150 Offline
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Your engines will only last for 300K or more using QS
So you decide 🤔

Re: QS Ultimate Durability 5w30 [Re: Doublehaul] #5278439 11/26/19 10:01 PM
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Bryanccfshr Offline
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Originally Posted by Doublehaul
Im interested in the QS powertrain warranty and buyback program for my Taco and 4Runner. I emailed them and included a copy of Toyotas verbiage allowing a thicker oil than 0w20 and they said in writing they will honor the warranty and buyback with the use of 5w30.

That said I've not used QS full synthetic before and I'm curious as to how the 5w30 version holds up. Use will be 10k oci in both vehicles. Is this formulation pretty fair in terms of piston deposits and varnish protection etc? Any ida on a HTHS?


I wouldn’t have a problem running it for 10 k in then4 runner. The Taco May be fine. I ran that oil in a 2.7 eco boost f150 at full 10k intervals. it seemed to hold up under that tougher engine condition, but i never tested the used oil. My concern I have is Soot and chain stretchin in the taco.. But it’s been a few years with this engine and no reports of issues. I am actually relaxing a bit on the issue It may not be expressing itself in this engine.lots of them going on and on with 10k bulk 0w20.


2018 Trd Pro 4Runner
2018 Tacoma off-road

Dealer 0w20 to M1 0w40 FS -it depends
Re: QS Ultimate Durability 5w30 [Re: Silverado12] #5278480 11/26/19 11:28 PM
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madeej11 Offline
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Originally Posted by Silverado12
If I were in a cold climate I would just use 0W-20. That's what I use in my wife's 2018 Jeep Cherokee 2.4 and it seems to work well. I change it 5-6K miles.

I agree with this. QSUD seems to be on the thicker side of a 5w30. If you're looking to do a 10k oci I'd be inclined to use something like Mobil 1 EP 0w20. As far as cleaning ability goes you may be better off with PP or PUP vs QSUD, which I think it may use more VI improvers and PPD's compared to the other three. If I lived in ND or MN I personally would go with Mobil 1 EP 0w20.

Re: QS Ultimate Durability 5w30 [Re: Bryanccfshr] #5278498 11/27/19 12:28 AM
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SteveG4 Offline
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Originally Posted by Bryanccfshr
Originally Posted by Doublehaul
Im interested in the QS powertrain warranty and buyback program for my Taco and 4Runner. I emailed them and included a copy of Toyotas verbiage allowing a thicker oil than 0w20 and they said in writing they will honor the warranty and buyback with the use of 5w30.

That said I've not used QS full synthetic before and I'm curious as to how the 5w30 version holds up. Use will be 10k oci in both vehicles. Is this formulation pretty fair in terms of piston deposits and varnish protection etc? Any ida on a HTHS?


I wouldn’t have a problem running it for 10 k in then4 runner. The Taco May be fine. I ran that oil in a 2.7 eco boost f150 at full 10k intervals. it seemed to hold up under that tougher engine condition, but i never tested the used oil. My concern I have is Soot and chain stretchin in the taco.. But it’s been a few years with this engine and no reports of issues. I am actually relaxing a bit on the issue It may not be expressing itself in this engine.lots of them going on and on with 10k bulk 0w20.

IMHO, the only way to combat soot and chain stretch is to reduce the OCI interval. My cheap, 4-cyl Equinox loves to load its oil with soot and eat it after 3000 miles. It needs changed right then and there -- at 3K miles. So, I've settled on QSUD 5W-30 changes at the interval. It's great oil and inexpensive. So much so that I won't feel ripped off at such a short internal period. As such, the engine/car will last as long as I care to keep it.

You will need to check your oil EVERY fill-up at the pump to determine what your OCI schedule will be. Perhaps a few rounds of oil analysis will help you make that decision as well.

BTW, my older Silverado loves QSUD 5W-30 as well. My Alaskan Silverado with a 5.3L Gen III L59 engine does well on QSUD down to -25 to -30 degs F. No problem.

And also, both vehicles like SOPUS' new product, RGT 5W-30, as well. I've recently tried this new SOPUS product in my Chevy trucks as their rebate enticed me. In the end, I'm sticking with QSUD, as its cheaper and does just as well it seems.

Good luck.



Last edited by SteveG4; 11/27/19 12:42 AM.

Somewhere between Alaska and Wisconsin...
2006 Silverado LT Crew Cab 4WD & 2013 Equinox AWD
Re: QS Ultimate Durability 5w30 [Re: Doublehaul] #5278751 11/27/19 10:18 AM
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Doublehaul Online Crying OP
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Sorry...more details.

I see temps down to -35 or so...but 5w30 is widely used up here...so no concern there. I’ve used it in the last with no issues

Driving habits are mostly highway. I drive 30,000 a year. Taco sees 3500 rpm for hours at a time. Currently running 0w40 which has been great. Just figured if I can get some free money at 300k...why not?


2019 Toyota 4Runner 4x4 TRD
2019 Toyota Tacoma 4x4 TRD*

Mobil 1 0w40


The specs on the back are more important than the label on the front
Re: QS Ultimate Durability 5w30 [Re: Doublehaul] #5279164 11/27/19 06:30 PM
Joined: Jan 2017
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SteveG4 Offline
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Originally Posted by Doublehaul
Sorry...more details.

I see temps down to -35 or so...but 5w30 is widely used up here...so no concern there. I’ve used it in the last with no issues

Driving habits are mostly highway. I drive 30,000 a year. Taco sees 3500 rpm for hours at a time. Currently running 0w40 which has been great. Just figured if I can get some free money at 300k...why not?

Mobil 1 0W40 is great oil. I'm not sure if any Quaker State product can beat it.
Personally, I change oil at or before 5,000 miles (3K miles with my cheap Equinox commuter). Regular maintenance is cheap insurance against costly repairs.
Give it a try though. It may surprise you. A UOA or three will likely help you decide.

Last edited by SteveG4; 11/27/19 06:38 PM.

Somewhere between Alaska and Wisconsin...
2006 Silverado LT Crew Cab 4WD & 2013 Equinox AWD
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