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High SAPS & DPF Re-Gen #4109824 05/29/16 02:50 PM
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userfriendly Offline OP
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Do high saps engine oils trigger dpf re-gens more often than low saps engine oils?

Would a dpf equipped engine need to consume oil before saps become an issue?

Re: High SAPS & DPF Re-Gen [Re: userfriendly] #4109859 05/29/16 03:45 PM
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If I recall it right. Some hard ashes from high saps potentially attaches to don't get burned pretty good in a regen, leaving hard residoes that pile up and decrease efficiency of the system. They areharder to burnout, as compared to the trapped soot targeted to the system.

Last edited by Pontual; 05/29/16 03:50 PM.
Re: High SAPS & DPF Re-Gen [Re: userfriendly] #4109877 05/29/16 04:14 PM
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Pontual has the right answer, as always.


'14 Grand Cherokee EcoDiesel
Rotella T6 5w-40 & OEM filter
Re: High SAPS & DPF Re-Gen [Re: userfriendly] #4109885 05/29/16 04:29 PM
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What signals the regen?

Re: High SAPS & DPF Re-Gen [Re: userfriendly] #4109891 05/29/16 04:54 PM
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If you have engine with DPF system...then full saps engine oil is a big NO NO!


2008 Toyota Yaris 1ND-TV 1.4 D4-D Tech9 5W30 C3 VW 504/507
1997 Toyota Landcruiser KZJ95 3.0 TD Elf Evolution NF900 5W40
Re: High SAPS & DPF Re-Gen [Re: CT8] #4109892 05/29/16 04:55 PM
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Originally Posted By: CT8
What signals the regen?

I believe there's a back pressure sensor that triggers regen at a certain threshold.


'14 Grand Cherokee EcoDiesel
Rotella T6 5w-40 & OEM filter
Re: High SAPS & DPF Re-Gen [Re: CT8] #4109963 05/29/16 06:55 PM
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2015_PSD Online Content
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Originally Posted By: CT8
What signals the regen?
In Ford Powerstrokes and I assume others as well, it is the percent loading of soot in the DPF that triggers it.


2019 Jeep Rubicon Wrangler Unlimited 3.6L V6 [OEM + Factory Fill]
2018 Mercedes Benz C300 2.0L Turbo [Pennzoil Platinum Euro 0W-40 & Mann filter]
Re: High SAPS & DPF Re-Gen [Re: userfriendly] #4110079 05/29/16 09:50 PM
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Are all oils that meet CJ-4 (such as T6) considered low SAPs?


2014 F250 6.7L PSD
2006 Sequoia 4.7L
2005 E500 5.0L
2018 Jeep Rubicon, Pentastar 3.6L
Re: High SAPS & DPF Re-Gen [Re: claluja] #4110082 05/29/16 09:54 PM
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edyvw Offline
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Originally Posted By: claluja
Are all oils that meet CJ-4 (such as T6) considered low SAPs?

No, it depends for what application.
T6 would be considered almost Full SAPS for my BMW.
So, use what your manual says. But I would go with lowest available SAPS oil that your truck(or car) can use it.


15' Toyota Sienna AWD (Mobil1 5W30 EP+OEM filter).
11' VW Tiguan 2.0T (Castrol 0W40+MANN filter)
Re: High SAPS & DPF Re-Gen [Re: claluja] #4110084 05/29/16 09:57 PM
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Garak Offline
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Originally Posted By: claluja
Are all oils that meet CJ-4 (such as T6) considered low SAPs?

No, as far as HDEOs go, they are considered mid-SAPS, at least by ACEA standards.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: High SAPS & DPF Re-Gen [Re: Garak] #4110086 05/29/16 10:01 PM
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edyvw Offline
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Originally Posted By: Garak
Originally Posted By: claluja
Are all oils that meet CJ-4 (such as T6) considered low SAPs?

No, as far as HDEOs go, they are considered mid-SAPS, at least by ACEA standards.

Yeah, T6 is Mid-SAPS by ACEA standards for that application.
However, it would not be able to meet C3 standard (personal vehicles).


15' Toyota Sienna AWD (Mobil1 5W30 EP+OEM filter).
11' VW Tiguan 2.0T (Castrol 0W40+MANN filter)
Re: High SAPS & DPF Re-Gen [Re: userfriendly] #4110098 05/29/16 10:17 PM
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I consider CJ-4 engine oils low saps as it applies to domestic Diesel trucks compared to the previous CI-4+ API classification.
Garak, I found an old Mobil product booklet from 2005 that listed Esso branded engine oils. All the XD-3s were 1.49 %/wt SA, TBN 12.
Now the SA is <1.0 in CJ-4, the old CI-4s had 1300p and close to 1500Z.
I had a dozen liters of CH-4 left in 0w30 and tried that in my LML Dmax for 6 months last winter.
The level never changed on the dipstick over 10K km, but it seemed to always be in regen mode.
Maybe the engine "sees" the additive package and ash is going into the exhaust without changing the oil level.

Re: High SAPS & DPF Re-Gen [Re: userfriendly] #4110100 05/29/16 10:20 PM
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Originally Posted By: userfriendly
I consider CJ-4 engine oils low saps as it applies to domestic Diesel trucks compared to the previous CI-4+ API classification.
Garak, I found an old Mobil product booklet from 2005 that listed Esso branded engine oils. All the XD-3s were 1.49 %/wt SA, TBN 12.
Now the SA is <1.0 in CJ-4, the old CI-4s had 1300p and close to 1500Z.
I had a dozen liters of CH-4 left in 0w30 and tried that in my LML Dmax for 6 months last winter.
The level never changed on the dipstick over 10K km, but it seemed to always be in regen mode.
Maybe the engine "sees" the additive package and ash is going into the exhaust without changing the oil level.

Do not forget evaporation loss.
DPF will go into regen. mode more often in city driving and using higher SAPS oils.
Try Valvoline 5W40 MST. Has SA level of .76


15' Toyota Sienna AWD (Mobil1 5W30 EP+OEM filter).
11' VW Tiguan 2.0T (Castrol 0W40+MANN filter)
Re: High SAPS & DPF Re-Gen [Re: userfriendly] #4110107 05/29/16 10:35 PM
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Thanks edyvw;
I save the synthetics for winter, my short winter trip is 80km/day. I hate using a HD truck for grocery getting duties.
The oil gets changed 3x a year; April, July and November.
My April and July engine oil is $4.00/L CF-2 low ash SAE40, M1 303s (?) off the top of my head.
There are so many good 0w40 & 5w40 CJ-4s now, I just might watch for a sale and pick whatever is the cheapest.

Re: High SAPS & DPF Re-Gen [Re: edyvw] #4110127 05/29/16 11:05 PM
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Garak Offline
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Originally Posted By: edyvw
Yeah, T6 is Mid-SAPS by ACEA standards for that application. However, it would not be able to meet C3 standard (personal vehicles).

Yes, definitely not the same.

userfriendly: Well, I guess it depends how you compare them, with the legacy stuff still falling under the full-SAPS category. E6 stuff, like Delvac 1 LE 5w-30 and the Delo LE 5w-30 and the Castrol equivalent are considered low-SAPS by the ACEA descriptions. SA is much the same, but sulphur and phosphorus are cut. The E9 designation is for mid-SAPS, whereas the E7 can cover older and newer additive levels, since the maximums are much higher. Delvac 1 ESP 5w-40 is E7, E9, being mid-SAPS, yet still having the enhanced TBN of E7.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
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