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QSUD & Magnatec ? #5270786 11/18/19 12:08 PM
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ChrisD46 Offline OP
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*Looks like QSUD ($17.xx) and Magnatec ($19.xx) per 5 qrt. jug are now everyday prices at WM (or have been on "roll back" at WM for longer than any oil I can remember?
I bought jugs of each in 5W30 to try in my Hyundai GDI 2.4L fuel diluter , soot creating 4 cylinder which I can only realistically run for 4K to 5K mile OCI's in mostly large city suburban driving .
Both a D1/Gen 2 rated and with the only differences being a shot of titanium in the Magnatec add pack along with "clinging" oil molecules while the QSUD (according to 540 RAT) has superior lubrication to just about any synthetic oil tested ... Probably just a case of picking which ever one you fancy best for a OCI of <5K miles in a GDI engine ?

Last edited by ChrisD46; 11/18/19 12:09 PM.

'17 Hyundai Sonata 2.4L GDI 5W20 QSUD / Fram Ultra #9688
'10 Hyundai Elantra 2.0L 5W30 (50%) / 5W20 (50%) QSUD / Fram Ultra #9688
'07 Kia Sedona 3.8L 5W30 Castrol EP / Fram Ultra #9999
Re: QSUD & Magnatec ? [Re: ChrisD46] #5270839 11/18/19 01:06 PM
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JustN89 Offline
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I've run both in my 2017 Elantra with no discernible difference between the two. I don't believe the "intelligent molecules" or couple ppm of titanium offer anything above and beyond what QSUD will do for your engine. You can purchase by price or by marketing, or you could just close your eyes and grab one of the two and be in great shape for your next OCI.

Re: QSUD & Magnatec ? [Re: ChrisD46] #5270923 11/18/19 02:59 PM
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DrDanger Offline
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Give Magnatec a try. You will like it or at worst, not notice a difference, making your latter oil purchases easy. Coating action should last a few OCI's.

Re: QSUD & Magnatec ? [Re: ChrisD46] #5270955 11/18/19 03:38 PM
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pbm Offline
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At a 4 to 5K OCI you could save a few bucks and go with ST syn. which is currently $14.37 for the 5qt. jug on 'Rollback'.
I'm sure any one of the three would serve you well at that short OCI.


'Journalism is Dead'
Re: QSUD & Magnatec ? [Re: ChrisD46] #5271000 11/18/19 04:30 PM
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Koncrete_Cam Offline
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Magnatec is $16.## with amazon s&s. If going with Walmart, the QSUD is hard to beat at $17.97


2018 Toyota 4Runner TRD Pro 4.0
2017 Mitsubishi Lancer ES 2.4
2015 BMW 328XI. 2.0
2014 Mazda 2. 1.5
Re: QSUD & Magnatec ? [Re: ChrisD46] #5271258 11/18/19 08:18 PM
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Hoot_r Offline
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Used both, like both. Will probably use both again. May eventually try out Castrol Edge or one of the many M1 or Valvoline flavors just for grins, but I believe most d1g2 formulations can be used with a high degree of confidence.


2020 Kia Soul LX, 2.0L Atkinson-cycle I-4 (Nu)
Valvoline Advanced Synthetic 5W30, OEM Filter
Re: QSUD & Magnatec ? [Re: pbm] #5271276 11/18/19 08:34 PM
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Mad_Hatter Offline
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Originally Posted by pbm
At a 4 to 5K OCI you could save a few bucks and go with ST syn. which is currently $14.37 for the 5qt. jug on 'Rollback'.
I'm sure any one of the three would serve you well at that short OCI.

OP this 👆...but if for some reason you're averse to using house oil, either QSUD or Magnatec will do just fine for your oci ("on paper" at least). If you wanted I higher degree of confidence in your choice, you could do a basic UOA after running one to (con)firm up your suspicions, since we are talking about a known diluter.

Re: QSUD & Magnatec ? [Re: ChrisD46] #5271309 11/18/19 09:04 PM
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NASTI Offline
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Take a look at your local autozone for Valvoline Modern Engine. They have it on clearance for $15 and is suppose to help with carbon build up on GDI engines.


2005 Subaru Impreza WRX STI
2015 Audi S3
2008 Lexus RX350
2000 Lexus ES300
Re: QSUD & Magnatec ? [Re: Mad_Hatter] #5271448 11/19/19 02:55 AM
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ChrisD46 Offline OP
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*It appears ST (Warren) has upped their game with the latest D1/Gen2 formulation - I'm not adverse to trying their 5W30 synthetic D1 / Gen 2 offering .
Originally Posted by Mad_Hatter
Originally Posted by pbm
At a 4 to 5K OCI you could save a few bucks and go with ST syn. which is currently $14.37 for the 5qt. jug on 'Rollback'.
I'm sure any one of the three would serve you well at that short OCI.

OP this 👆...but if for some reason you're averse to using house oil, either QSUD or Magnatec will do just fine for your oci ("on paper" at least). If you wanted I higher degree of confidence in your choice, you could do a basic UOA after running one to (con)firm up your suspicions, since we are talking about a known diluter.


'17 Hyundai Sonata 2.4L GDI 5W20 QSUD / Fram Ultra #9688
'10 Hyundai Elantra 2.0L 5W30 (50%) / 5W20 (50%) QSUD / Fram Ultra #9688
'07 Kia Sedona 3.8L 5W30 Castrol EP / Fram Ultra #9999
Re: QSUD & Magnatec ? [Re: NASTI] #5271449 11/19/19 02:58 AM
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ChrisD46 Offline OP
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*That would be a great score !! I've used Valvoline Advanced synthetic with no issues and the Modern version is even higher priced , so $15 per 5 qrt jug would be great .
Originally Posted by NASTI
Take a look at your local autozone for Valvoline Modern Engine. They have it on clearance for $15 and is suppose to help with carbon build up on GDI engines.


'17 Hyundai Sonata 2.4L GDI 5W20 QSUD / Fram Ultra #9688
'10 Hyundai Elantra 2.0L 5W30 (50%) / 5W20 (50%) QSUD / Fram Ultra #9688
'07 Kia Sedona 3.8L 5W30 Castrol EP / Fram Ultra #9999
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