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#3428449 - 07/18/14 12:16 PM Re: kv100 or/and hths100 ? [Re: Quattro Pete]
yvon_la Offline


Registered: 05/20/14
Posts: 740
Loc: quebec canada
Originally Posted By: Quattro Pete
Originally Posted By: yvon_la
(But would not meet the energy conserving limit for hths 150)

I'm not really sure what you wrote here.

In simplest terms, an oil that has an HT/HS Viscosity of 3.5 cP or higher will not meet the energy conserving requirements stipulated in ILSAC GF5 spec.

yep
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#3428461 - 07/18/14 12:29 PM Re: kv100 or/and hths100 ? [Re: Quattro Pete]
dparm Offline


Registered: 04/19/10
Posts: 12541
Loc: Chicago, IL
Originally Posted By: Quattro Pete
Originally Posted By: yvon_la
(But would not meet the energy conserving limit for hths 150)

I'm not really sure what you wrote here.

In simplest terms, an oil that has an HT/HS Viscosity of 3.5 cP or higher will not meet the energy conserving requirements stipulated in ILSAC GF5 spec.




There's some dubiousness about Renewable Lube around this. They claim the 0w30 is HTHS of 3.6-3.8 but also call it energy conserving. I've never gotten a clear answer out of them on this.

Then again, their basestocks and chemistry seem to be quite advanced so it's possible that the HTHS is a bit lower (3.2-3.4?) but the formula is so stout that it maintains that viscosity for a very long time.

The fact that their 15w40 is really a 5w40, and almost a 0w40, leads me to believe there is some very sophisticated engineering they keep secret.
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#3428487 - 07/18/14 12:54 PM Re: kv100 or/and hths100 ? [Re: dparm]
Quattro Pete Offline


Registered: 10/30/02
Posts: 25945
Loc: Michigan
Originally Posted By: dparm
The fact that their 15w40 is really a 5w40,

If the oil meets the cold viscosity test requirements of 5w, then it should be labeled as such. Unless of course they don't claim any API/SAE J300 compliance, in which case they can call it anything they want.
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#3428741 - 07/18/14 08:26 PM Re: kv100 or/and hths100 ? [Re: Quattro Pete]
dparm Offline


Registered: 04/19/10
Posts: 12541
Loc: Chicago, IL
Originally Posted By: Quattro Pete
Originally Posted By: dparm
The fact that their 15w40 is really a 5w40,

If the oil meets the cold viscosity test requirements of 5w, then it should be labeled as such. Unless of course they don't claim any API/SAE J300 compliance, in which case they can call it anything they want.




They label it as 15w40 for marketing purposes -- HDEO users want to see 15w40, even though the 5w40 might be superior. Bill told me this. Supposedly it's very close to being a 0w40.
_________________________
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Castrol Edge Professional TWS 10w60 + Mahle OX 254D3

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