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UOA--Supertech Severe Use on a 7.3 PSD #4892606 10/10/18 07:18 AM
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bbslider001 Offline OP
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Here ya go...If you ever doubted "cheap" Walmart oil.


Screenshot_20181009-150241.png
Last edited by bbslider001; 10/10/18 07:19 AM.

Byron

1999 F-350 CCLB SRW 7.3, Supertech 15w-40 protected, 300k miles
Various other 7.3s bought, sold, or wrecked
2020 Kia Soul S



Re: UOA--Supertech Severe Use on a 7.3 PSD [Re: bbslider001] #4892640 10/10/18 07:57 AM
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UncleDave Offline
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Thanks.

What were you doing with the truck to categorize the use as "severe" ?

UD


Uncle Dave
Cat 3126/2 MB3500/Titan/RX400H/17 Ridgeline
700HP V10/ 725HP BBC/ Raptor 700/ KFX450/ YZ250/Onan 8K/ Cat3011C
Re: UOA--Supertech Severe Use on a 7.3 PSD [Re: bbslider001] #4892644 10/10/18 08:06 AM
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diyjake Offline
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Have you used anything else besides ST 15w-40 in this truck? Would be nice to see if another brand of oil had the same thing with thin viscosity like they mentioned in this UOA.

Re: UOA--Supertech Severe Use on a 7.3 PSD [Re: UncleDave] #4892676 10/10/18 08:27 AM
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bbslider001 Offline OP
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Originally Posted by UncleDave
Thanks.

What were you doing with the truck to categorize the use as "severe" ?

UD


Mostly heavy towing all summer...12k # or more, lots of idling through cattle pastures, extreme summer temps, one long trip to pick up a trailer that was 15 hours away. Man, when I lay it all out, I am pretty impressed with this oil LOL. My oil temps never got above 225, so the truck does a great job of cooling even under pressure.


Byron

1999 F-350 CCLB SRW 7.3, Supertech 15w-40 protected, 300k miles
Various other 7.3s bought, sold, or wrecked
2020 Kia Soul S



Re: UOA--Supertech Severe Use on a 7.3 PSD [Re: diyjake] #4892678 10/10/18 08:28 AM
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bbslider001 Offline OP
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Originally Posted by diyjake
Have you used anything else besides ST 15w-40 in this truck? Would be nice to see if another brand of oil had the same thing with thin viscosity like they mentioned in this UOA.


The PO used conventional Rotella religiously, but I have used ST since I have owned it. I bought it two years ago and have put about 50k on it since then.


Byron

1999 F-350 CCLB SRW 7.3, Supertech 15w-40 protected, 300k miles
Various other 7.3s bought, sold, or wrecked
2020 Kia Soul S



Re: UOA--Supertech Severe Use on a 7.3 PSD [Re: bbslider001] #4892688 10/10/18 08:39 AM
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dlundblad Offline
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Is it severe use? Sounds more like it was used the way it was intended.

5k is pretty doable on just about any oil.

What does the owners manual say?


03 Jeep WJ 4.0 202k Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 195k M1 0w40 Mahle OX149D
97 Chvy Blazer 4.3 158k M1 EP 10w30 Supertech ST3980

Re: UOA--Supertech Severe Use on a 7.3 PSD [Re: bbslider001] #4892701 10/10/18 08:48 AM
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diyjake Offline
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This was ST conventional correct?

Re: UOA--Supertech Severe Use on a 7.3 PSD [Re: bbslider001] #4892769 10/10/18 09:41 AM
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JMJNet Offline
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I have used this oil in my diesel truck for at least 2 years, there is nothing wrong with this oil.

I bought whatever is the cheapest. This time, the Mobil Delvac 1300S is cheaper after rebate.
So that is what I will use next.


  • 2017 Toyota Sienna
  • 1995 GMC Suburban 6.5L Turbo Diesel


Re: UOA--Supertech Severe Use on a 7.3 PSD [Re: bbslider001] #4892785 10/10/18 09:51 AM
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diyjake Offline
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Is this UOA is for ST conventional or synthetic?

Re: UOA--Supertech Severe Use on a 7.3 PSD [Re: dlundblad] #4892797 10/10/18 10:05 AM
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sw99 Offline
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Originally Posted by dlundblad
Is it severe use? Sounds more like it was used the way it was intended.

5k is pretty doable on just about any oil.

What does the owners manual say?


Ahh yea sounds like what any manufacturer would considered severe use...

1) Mostly heavy towing all summer...12k # or more
2) Lots of idling through cattle pastures
3) Extreme summer temps, one long trip to pick up a trailer that was 15 hours away




Re: UOA--Supertech Severe Use on a 7.3 PSD [Re: bbslider001] #4892816 10/10/18 10:18 AM
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bbslider001 Offline OP
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It is conventional. I swore off syns years sgo.


Byron

1999 F-350 CCLB SRW 7.3, Supertech 15w-40 protected, 300k miles
Various other 7.3s bought, sold, or wrecked
2020 Kia Soul S



Re: UOA--Supertech Severe Use on a 7.3 PSD [Re: bbslider001] #4892832 10/10/18 10:37 AM
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diyjake Offline
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To be honest I am impressed with your UOA for a cheap conventional oil. I would definitely agree with you that you put it through severe use.

What oil filter do you use?

Re: UOA--Supertech Severe Use on a 7.3 PSD [Re: diyjake] #4892853 10/10/18 11:01 AM
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bbslider001 Offline OP
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Originally Posted by diyjake
To be honest I am impressed with your UOA for a cheap conventional oil. I would definitely agree with you that you put it through severe use.

What oil filter do you use?


Motorcraft from Walmart...10 bucks. They are well made and tough.


Byron

1999 F-350 CCLB SRW 7.3, Supertech 15w-40 protected, 300k miles
Various other 7.3s bought, sold, or wrecked
2020 Kia Soul S



Re: UOA--Supertech Severe Use on a 7.3 PSD [Re: bbslider001] #4892908 10/10/18 12:03 PM
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DoubleWasp Offline
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Definitely what Ford would consider severe service conditions. Definitely performed well.


07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio
Re: UOA--Supertech Severe Use on a 7.3 PSD [Re: dlundblad] #4892954 10/10/18 12:45 PM
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bbslider001 Offline OP
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Originally Posted by dlundblad
Is it severe use? Sounds more like it was used the way it was intended.

5k is pretty doable on just about any oil.

What does the owners manual say?


Yeah, I would say that's pretty severe considering dust conditions, dry grass, high outside temps, and the heavy towing for 75% of the miles used. "Normal" might be city driving, very little towing, and no dusty conditions. This was far from that, owners manual or not.


Byron

1999 F-350 CCLB SRW 7.3, Supertech 15w-40 protected, 300k miles
Various other 7.3s bought, sold, or wrecked
2020 Kia Soul S



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