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#4675864 - 02/23/18 08:04 PM Low SAPS oil for a diesel engine without a DPF?
Philsmith Offline


Registered: 02/23/18
Posts: 5
Loc: Australia
Hi all,

I have just purchased a Mazda 6 wagon with a 2.0 l turbo diesel (MZR-CD). The previous owner had trouble with the diesel particulate filter and ended up having it removed and the software amended accordingly. So as I see it there is no need for the low ash oil, ash being a problem with DPFs. The reccommended oil to meet the Japanese standard (JASO DL-1) is quite expensive, about $90 for 5 litres. My question for all you gurus is whether I might use a different oil providing equivalent lubrication properties that does not meet the low SAPS standard?

Cheers

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#4675987 - 02/23/18 10:12 PM Re: Low SAPS oil for a diesel engine without a DPF? [Re: Philsmith]
Linctex Offline


Registered: 12/31/16
Posts: 6186
Loc: Waco, TX
Cheers, mate

Originally Posted By: Philsmith
My question for all you gurus is whether I might use a different oil providing equivalent lubrication properties that does not meet the low SAPS standard?


Low- SAPS = lots of goodness removed.

Buy & use any good priced oil that is rated for use in diesel engines.
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#4676046 - 02/24/18 12:10 AM Re: Low SAPS oil for a diesel engine without a DPF? [Re: Linctex]
Philsmith Offline


Registered: 02/23/18
Posts: 5
Loc: Australia
Thanks v muchly.

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#4676092 - 02/24/18 04:38 AM Re: Low SAPS oil for a diesel engine without a DPF? [Re: Philsmith]
supercity Offline


Registered: 06/12/12
Posts: 1161
Loc: Australia
DL-1 is roughly equivalent to ACEA C1. A higher Saps oil is C2 or A5/B5 but you could use A3/B4 or C3 too, I cant see it will make much difference.

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#4676093 - 02/24/18 04:38 AM Re: Low SAPS oil for a diesel engine without a DPF? [Re: Philsmith]
Olas Offline


Registered: 12/11/13
Posts: 3938
Loc: Manchester, England
A3/B4 or E4 is the spec to look for if you don't burn oil, or if you do burn oil but have no CAT/DPF/TWC. (high saps for best protection)

If you burn oil AND have DPF/CAT/TWC then look for C1 (lowest saps available)


Edited by Olas (02/24/18 04:40 AM)
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#4676113 - 02/24/18 06:11 AM Re: Low SAPS oil for a diesel engine without a DPF? [Re: supercity]
Philsmith Offline


Registered: 02/23/18
Posts: 5
Loc: Australia
Thanks supercity

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#4676114 - 02/24/18 06:11 AM Re: Low SAPS oil for a diesel engine without a DPF? [Re: Olas]
Philsmith Offline


Registered: 02/23/18
Posts: 5
Loc: Australia
Thanks olas

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#4677199 - 02/25/18 03:18 AM Re: Low SAPS oil for a diesel engine without a DPF? [Re: Philsmith]
chrisri Offline


Registered: 06/01/14
Posts: 1746
Loc: Rijeka, EU
Mazdas in EU use C2 or C3 oils. I would use C3 for greater HT-HS. Valvoline Synpower MST 5w40 comes to my mind, but there's other candidates. Alternatively, an A3/B4 lubricant- if DPF is deleted, (as Shell Helix Ultra 5w40, or similar) can be used depending on the price.
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07 Opel Vectra SW 1.9 CDTI 150 MST 5w40

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#4678345 - 02/26/18 04:41 AM Re: Low SAPS oil for a diesel engine without a DPF? [Re: chrisri]
Philsmith Offline


Registered: 02/23/18
Posts: 5
Loc: Australia
Yhanks chrisiri

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#4697822 - 03/17/18 06:14 PM Re: Low SAPS oil for a diesel engine without a DPF? [Re: Philsmith]
Bjornviken Offline


Registered: 12/06/17
Posts: 265
Loc: Finland
There is Shell helix ultra 0w-30 c2/c3 oil that is really good

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#4709126 - 03/28/18 01:33 AM Re: Low SAPS oil for a diesel engine without a DPF? [Re: Philsmith]
JFAllen Offline


Registered: 07/31/16
Posts: 165
Loc: Albury, NSW
While not required. Low and Mid SAPS oils have advantages in reducing inlet deposits in all vehicles that have EGR/PCV systems. Hot sooty exhaust gases + warm moist crank case gases = sludge in the inlet. Especially on DI (both petrol and diesel.)

these premium oils also tend to have better NOACK characteristics which also limit oil flash off.

I use SHU ECT C2/C3 0W30 or SHU ECT C3 5W30 in my Saab 9-5 turbo; and while I'm sure any other mid saps modern synthetic would have had a similar result. The fuel economy and reduction in oil consumption has been very noticeable. Not to mention the incredibly smooth running.

Regards
Jordan

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