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Re: Idemitsu 0w20 w/ MOLY - 5,495mi - 2014 Mazda 3 [Re: PimTac] #4948174 12/10/18 12:27 PM
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Artem Offline OP
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Who knows. I certainly don’t plan on messing with Idimitsu’s formula with additives. I like it where it’s at.


2014 Mazda 3 Hatch 2.0L & 6spd - Idemitsu 0w20 Synthetic @ $0.75 a quart. (thanks Advance Auto Parts for the awesome deal)
Re: Idemitsu 0w20 w/ MOLY - 5,495mi - 2014 Mazda 3 [Re: Artem] #4948183 12/10/18 12:40 PM
Joined: Mar 2017
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PimTac Offline
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Originally Posted by Artem
Who knows. I certainly don’t plan on messing with Idimitsu’s formula with additives. I like it where it’s at.




I agree. I’ve contemplated running this oil in the CX5. It’s a very good oil.


2017 Mazda CX5
Havoline Pro DS 0w20
Roki OEM filter.
Re: Idemitsu 0w20 w/ MOLY - 5,495mi - 2014 Mazda 3 [Re: Artem] #4972512 01/07/19 06:48 PM
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littlehulkster Offline
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Originally Posted by Artem
Decided to try Idemitsu with Moly to compare to the regular ol' plain jane Idemitsu. Got this oil on sale from Amazon for like $25 shipped, I think.

Also decided to extend the interval a bit, to actually give the oil a challenge. An 800 mile trip right at the end helped rack up the miles over the course of two days. Haha.

The Oil Life showed 40% remaining using the "flexible" oil life setting, which calculates based on engine operations and conditions.

It's a silly comparison obviously, since most of the miles have been in cooler winter Florida temps, vs the 100F summer runs. The occasional 35F-40F (50-65F average) cold starts have been BRUTAL... on my hands while i grip the ice cold steering wheel and shifter. Hahaha. I don't know how you people live up north where its ACTUALLY COLD. Goodness gracious. I want my FL warmth back.


Looks like both this and the Mazda branded oil (made by Idemitsu, as well) are chock full of Calcium, so Mazda has no worries about LSPI on these engines. I don't know why so many Mazda guys keep insisting it'd be an issue. Everything I've seen shows that it only effects turbocharged engines. I have to wonder if they're not setting themselves up for massive carbon deposit issues in their attempt to escape the non-existent LSPI issues.


2015 Mazda3 I 2.0
Re: Idemitsu 0w20 w/ MOLY - 5,495mi - 2014 Mazda 3 [Re: Artem] #4972818 01/07/19 11:43 PM
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Artem Offline OP
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Who knows. I’ve only run the high moly Mazda / Idemitsu oil a few times. It’s expensive from Mazda and I have no problem running “regular” synthetic in my Skyactiv.


2014 Mazda 3 Hatch 2.0L & 6spd - Idemitsu 0w20 Synthetic @ $0.75 a quart. (thanks Advance Auto Parts for the awesome deal)
Re: Idemitsu 0w20 w/ MOLY - 5,495mi - 2014 Mazda 3 [Re: Artem] #4973494 01/08/19 07:03 PM
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littlehulkster Offline
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Originally Posted by Artem
Who knows. I’ve only run the high moly Mazda / Idemitsu oil a few times. It’s expensive from Mazda and I have no problem running “regular” synthetic in my Skyactiv.


Well, your average SN rated oil has as much calcium as this does. From what I've seen in Valvoline, with it's Na/Ca add packs (which should be the worst for LSPI), there are no issues in the NA Skyactivs either. It's a high compression engine, sure, but it does not seem like LSPI is an issue for it at all.


2015 Mazda3 I 2.0
Re: Idemitsu 0w20 w/ MOLY - 5,495mi - 2014 Mazda 3 [Re: littlehulkster] #4973512 01/08/19 07:24 PM
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PimTac Offline
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Originally Posted by littlehulkster
Originally Posted by Artem
Who knows. I’ve only run the high moly Mazda / Idemitsu oil a few times. It’s expensive from Mazda and I have no problem running “regular” synthetic in my Skyactiv.


Well, your average SN rated oil has as much calcium as this does. From what I've seen in Valvoline, with it's Na/Ca add packs (which should be the worst for LSPI), there are no issues in the NA Skyactivs either. It's a high compression engine, sure, but it does not seem like LSPI is an issue for it at all.




Valvoline dropped the sodium calcium additive package over a year ago.


2017 Mazda CX5
Havoline Pro DS 0w20
Roki OEM filter.
Re: Idemitsu 0w20 w/ MOLY - 5,495mi - 2014 Mazda 3 [Re: PimTac] #4973638 01/08/19 09:13 PM
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littlehulkster Offline
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Originally Posted by PimTac
Originally Posted by littlehulkster
Originally Posted by Artem
Who knows. I’ve only run the high moly Mazda / Idemitsu oil a few times. It’s expensive from Mazda and I have no problem running “regular” synthetic in my Skyactiv.


Well, your average SN rated oil has as much calcium as this does. From what I've seen in Valvoline, with it's Na/Ca add packs (which should be the worst for LSPI), there are no issues in the NA Skyactivs either. It's a high compression engine, sure, but it does not seem like LSPI is an issue for it at all.




Valvoline dropped the sodium calcium additive package over a year ago.


And Skyactivs have been on the market much longer than that, with lots of them being fed the old SN oil grade (which Mazda still recommends, and which it's dealers still use as OEM) for hundreds of thousands of miles and nary a problem.

I haven't heard of a single issue with LSPI in any N/A Mazda engine, despite their high compression. If Mazda thought it was an issue, they would have never specced the oil in the first place, and would have updated the spec by now. They have not.

Last edited by littlehulkster; 01/08/19 09:14 PM.

2015 Mazda3 I 2.0
Re: Idemitsu 0w20 w/ MOLY - 5,495mi - 2014 Mazda 3 [Re: littlehulkster] #4973658 01/08/19 09:24 PM
Joined: Mar 2017
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PimTac Offline
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Originally Posted by littlehulkster
Originally Posted by PimTac
Originally Posted by littlehulkster
Originally Posted by Artem
Who knows. I’ve only run the high moly Mazda / Idemitsu oil a few times. It’s expensive from Mazda and I have no problem running “regular” synthetic in my Skyactiv.


Well, your average SN rated oil has as much calcium as this does. From what I've seen in Valvoline, with it's Na/Ca add packs (which should be the worst for LSPI), there are no issues in the NA Skyactivs either. It's a high compression engine, sure, but it does not seem like LSPI is an issue for it at all.




Valvoline dropped the sodium calcium additive package over a year ago.


And Skyactivs have been on the market much longer than that, with lots of them being fed the old SN oil grade (which Mazda still recommends, and which it's dealers still use as OEM) for hundreds of thousands of miles and nary a problem.

I haven't heard of a single issue with LSPI in any N/A Mazda engine, despite their high compression. If Mazda thought it was an issue, they would have never specced the oil in the first place, and would have updated the spec by now. They have not.




True but the engines have gone through CQI over the model years. I think it’s prudent to run the latest spec even if LSPI is not a issue in these engines. It really depends on how the particular vehicle is driven.


Valvoline dropped sodium and went back to a moly/boron package along with titanium.


2017 Mazda CX5
Havoline Pro DS 0w20
Roki OEM filter.
Re: Idemitsu 0w20 w/ MOLY - 5,495mi - 2014 Mazda 3 [Re: Artem] #4973746 01/08/19 11:04 PM
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littlehulkster Offline
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Originally Posted by PimTac


True but the engines have gone through CQI over the model years. I think it’s prudent to run the latest spec even if LSPI is not a issue in these engines. It really depends on how the particular vehicle is driven.


Valvoline dropped sodium and went back to a moly/boron package along with titanium.



Well, it's not going to be much longer now until just about every mainstream oil is SN+ rated anyway, so the point is probably moot. There won't be a choice. I'm sure it will work fine, though, even if Mazda doesn't worry about LSPI in these engines.

Last edited by littlehulkster; 01/08/19 11:04 PM.

2015 Mazda3 I 2.0
Re: Idemitsu 0w20 w/ MOLY - 5,495mi - 2014 Mazda 3 [Re: littlehulkster] #4973755 01/08/19 11:29 PM
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PimTac Offline
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They are almost there now.

I’m planning on changing my oil here in a few months and this Idemitsu Zepro is the first choice at the moment. It will do fine in my SkyActiv 2.5.


2017 Mazda CX5
Havoline Pro DS 0w20
Roki OEM filter.
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