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Today's 110W Use to be Yesterday's 90W? #5232039 10/06/19 12:37 PM
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Gebo Offline OP
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I have seen several references saying today's 75W-110 was what used to be 75W-90. I want to read and study this. Where can I find how the viscosity standards changed making today 110W yesterday's 90W?

Last edited by Gebo; 10/06/19 12:38 PM.

'98 LEX LS400 300K
'02 4Runner 245K
'05 Lex LS430 85K
'07 Lex GX470 65K

Shell Gas and Truck & Pennzoil Full Syn HM
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
Re: Today's 110W Use to be Yesterday's 90W? [Re: Gebo] #5232063 10/06/19 12:58 PM
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Originally Posted by Gebo
I have seen several references saying today's 75W-110 was what used to be 75W-90. I want to read and study this. Where can I find how the viscosity standards changed making today 110W yesterday's 90W?



The only 75w110 I've seen is from Amsoil. Everything else I see is 75w90, 75w140, or 85w140.


1998 Jeep Wrangler Sahara 4.0L/5MT (156k) - PHM 10w30, Wix 51085
2009 BMW 328i N51 (53k) - Castrol Edge Euro 0w40, MANN HU816X
Re: Today's 110W Use to be Yesterday's 90W? [Re: Gebo] #5232071 10/06/19 01:02 PM
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Thanks, Jeepman3071 but I'm trying to find the "article" that shows today's 110W used to be yesterday's 90W.


'98 LEX LS400 300K
'02 4Runner 245K
'05 Lex LS430 85K
'07 Lex GX470 65K

Shell Gas and Truck & Pennzoil Full Syn HM
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
Re: Today's 110W Use to be Yesterday's 90W? [Re: Gebo] #5232074 10/06/19 01:07 PM
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skyactiv Online Content
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Last edited by skyactiv; 10/06/19 01:13 PM.

Wife: 15' Audi A4 quattro 6 speed manual
Sold: 13' VW GTI 3 door 6 speed manual
Me: 18' Elantra Sport 6 speed manual


Re: Today's 110W Use to be Yesterday's 90W? [Re: Gebo] #5232148 10/06/19 02:35 PM
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earlyre Offline
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all i could quickly find was THIS thread from 6 years ago, with a post from JHZR2, that started with "Remember that years ago, the API cut apart the "90" spec to be the lighter end of the original range."


Mine:
13 Ford C-MAX hybrid: Havoline syn 5w20,& Napa Gold 1348
Re: Today's 110W Use to be Yesterday's 90W? [Re: Gebo] #5232194 10/06/19 03:34 PM
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SAE J306 was revised in 2005.
As part of that revision, the 110 grade was added between 90 and 140.


2001 Mitsubishi Galant 2.4 - 165k+
Grandma's creampuff...
Re: Today's 110W Use to be Yesterday's 90W? [Re: Imp4] #5232254 10/06/19 05:03 PM
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Originally Posted by Imp4
SAE J306 was revised in 2005.
As part of that revision, the 110 grade was added between 90 and 140.

^^^this

75W-110 is the upper viscosity 75W-90 used to be before the revision. 75W-90 had a wider viscosity range versus what it has today. I use 75W-110 everywhere 75W-90 is specified


2019 o)|||||(o Rubicon Wrangler Unlimited 3.6L V6 [Castrol Edge 0W-20 + FRAM Ultra]
2018 Mercedes Benz C300 2.0L Turbo [Pennzoil Platinum Euro 0W-40 & Mann filter]
Re: Today's 110W Use to be Yesterday's 90W? [Re: Gebo] #5232298 10/06/19 05:51 PM
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Redline has it too


Re: Today's 110W Use to be Yesterday's 90W? [Re: Gebo] #5232357 10/06/19 06:48 PM
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Here's what I found. Like you can tell I ain't got a lot going on this evening. This is from a 2019 Lubrizol YouTube.

100 degrees

90w 13.5-18.5
110w 18.5-24

Do you know what the viscosities were in 2004?

Are you saying in 2004 that 90W was 13.5-24?


'98 LEX LS400 300K
'02 4Runner 245K
'05 Lex LS430 85K
'07 Lex GX470 65K

Shell Gas and Truck & Pennzoil Full Syn HM
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
Re: Today's 110W Use to be Yesterday's 90W? [Re: Gebo] #5232411 10/06/19 07:41 PM
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zeng Offline
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Originally Posted by Gebo
Here's what I found. Like you can tell I ain't got a lot going on this evening. This is from a 2019 Lubrizol YouTube.

100 degrees

90w 13.5-18.5
110w 18.5-24

Do you know what the viscosities were in 2004?

Are you saying in 2004 that 90W was13.5-24 ?

Yes, you are absolutely right .

And that is equivalent to a viscosity range from ISO 150 ([email protected]*C - 150 cSt) to ISO 320 ([email protected]*C - 320 cSt) viscosity grades, in gear-train lubricant terminology speak.

Hence, IMHO, current modern day 75W90 grade is NOT equivalent to pre-2005 80W90 grade , let alone SAE 90 grade , from the perspective of gear lubricant applications .
Never mind that I may be bashed.

Last edited by zeng; 10/06/19 07:45 PM.
Re: Today's 110W Use to be Yesterday's 90W? [Re: Gebo] #5232429 10/06/19 07:56 PM
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Ok, so if I wanna go with what was spec’d in my old stuff what is your opinion? 75W-110?


'98 LEX LS400 300K
'02 4Runner 245K
'05 Lex LS430 85K
'07 Lex GX470 65K

Shell Gas and Truck & Pennzoil Full Syn HM
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
Re: Today's 110W Use to be Yesterday's 90W? [Re: Gebo] #5232544 10/06/19 11:28 PM
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zeng Offline
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Originally Posted by Gebo
Ok, so if I wanna go with what was spec’d in my old stuff what is your opinion? 75W-110?


Red Line 75W110 has a [email protected]*C of 131 cSt

ISO 150 (being at lower or thinner end) gear lubricants would have a [email protected]*C range of 135 - 165 cSt.

If your pre-2005 manual calls for 80W90, modern day RL 75W110 may be 'considered' as meeting specs, especially in this world of Bitog/CAFE/fuel efficiency etc .

Numerically , that may be a different interpretation or judgement call .

If your pre-2005 manual calls for SAE 90, personally I won't adopt 75W110 but hey, you make the call, not me .

In order to be closer to the original intent of the OEM engineer who wrote the pre-2005 manual, modern day 75W140 may be a good compromise IMHO. Yes, a compromise.

Last edited by zeng; 10/06/19 11:38 PM.
Re: Today's 110W Use to be Yesterday's 90W? [Re: Gebo] #5232639 10/07/19 05:52 AM
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Gebo Offline OP
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Zeng,

Thanks for helping me understand.


'98 LEX LS400 300K
'02 4Runner 245K
'05 Lex LS430 85K
'07 Lex GX470 65K

Shell Gas and Truck & Pennzoil Full Syn HM
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
Re: Today's 110W Use to be Yesterday's 90W? [Re: Gebo] #5232653 10/07/19 06:14 AM
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This is from my notes. And why Ford went from 80w-90 to 75w-140 in their requirements.

Pre 2001 Specs @100C
w90 13.5-24
w140 32.5-42

Post 2001 Specs @100C
w90 13.5-18.5
w140 24.4-32.5


2005 Ranger 3.0 - SuperTech Syn 5w-30/Motorcraft
2000 4Runner 3.4 - SuperTech Syn 5w-30/Toyota
1997 B2500 Van 3.9 - M1 HM 10w-30/Mopar
1993 F150 4.9 - SuperTech Syn 5w-30/Motorcraft
Re: Today's 110W Use to be Yesterday's 90W? [Re: Gebo] #5232665 10/07/19 06:36 AM
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Gebo Offline OP
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Great info! Thanks, ka9mnx.


'98 LEX LS400 300K
'02 4Runner 245K
'05 Lex LS430 85K
'07 Lex GX470 65K

Shell Gas and Truck & Pennzoil Full Syn HM
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
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