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#4528076 - 09/28/17 03:15 AM 0-20 & 10-30 oil mix
Shata Offline


Registered: 10/21/16
Posts: 169
Loc: Virginia, usa
Just curious what you guys thought about 8qts 0-20 pp and .75qts of 10-30 t5 mixed would look like as far as final number. I see people mixing around here and I did little top off with T5 since my oil change is 2k miles away finally.

My guess is somewhere around a 5-20? Since I have about 5k miles on this oil. I'm also getting blackstone UOA when time comes.
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#4528103 - 09/28/17 05:12 AM Re: 0-20 & 10-30 oil mix [Re: Shata]
PimTac Offline


Registered: 03/04/17
Posts: 4213
Loc: Soviet State of Washington
I doubt there will be any change.
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#4528119 - 09/28/17 05:39 AM Re: 0-20 & 10-30 oil mix [Re: PimTac]
Shata Offline


Registered: 10/21/16
Posts: 169
Loc: Virginia, usa
Originally Posted By: PimTac
I doubt there will be any change.

Ya with my oil capacity I figure it's more like 1w-22 but who knows, people mix around here all time with no noticeable change other then additive package showing different in UOA. We'll see what blackstone says to my viscosity.
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#4528124 - 09/28/17 05:57 AM Re: 0-20 & 10-30 oil mix [Re: Shata]
KL31 Offline


Registered: 06/03/16
Posts: 549
Loc: South OZ
Not much difference at all.
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#4528168 - 09/28/17 07:14 AM Re: 0-20 & 10-30 oil mix [Re: Shata]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2731
Loc: Wet side WA
The only reason I mix is I have something left over and all I use it for is top off oil.
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#4528183 - 09/28/17 07:44 AM Re: 0-20 & 10-30 oil mix [Re: Shata]
oil_film_movies Offline


Registered: 06/13/16
Posts: 2548
Loc: MN
Shata, you're right, it would affect the very cold end of things to make it a 5w-20, since T5 is not a full synthetic.
Hot viscosity will go up by just 0.3 at kv100.
kv100 goes from 8.0 to 8.3.
http://www.widman.biz/English/Calculators/Mixtures.html

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#4528226 - 09/28/17 08:43 AM Re: 0-20 & 10-30 oil mix [Re: Shata]
ARCOgraphite Offline


Registered: 05/17/09
Posts: 11963
Loc: N.H, U.S.A.
THERE ARE NO SAE GRADE NUMBERS BETWEEN 0W/5W/10W OR 20/30/40 its EITHER IN THE MARGIN OR NOT.

Then there came frickin 16 grade ! That was a mistake.



Edited by ARCOgraphite (09/28/17 08:43 AM)
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#4528234 - 09/28/17 08:48 AM Re: 0-20 & 10-30 oil mix [Re: ARCOgraphite]
bigj_16 Online   content


Registered: 07/03/17
Posts: 1267
Loc: Douglas County, Colorado
Originally Posted By: ARCOgraphite
THERE ARE NO SAE GRADE NUMBERS BETWEEN 0W/5W/10W OR 20/30/40 its EITHER IN THE MARGIN OR NOT.

Then there came frickin 16 grade ! That was a mistake.

What about 8 Grade?

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#4528285 - 09/28/17 09:49 AM Re: 0-20 & 10-30 oil mix [Re: bigj_16]
weasley Offline


Registered: 03/13/13
Posts: 749
Loc: UK
Originally Posted By: bigj_16
What about 8 Grade?


What about 12?

Also, to OP, if you're topping off 8 quarts of oil that has been in an engine for a while, it's unlikely to still be a bona fide 0W-20, so adding a splash of 5W-30 to who-knows-what-it-is-now will give you... who knows what?!
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#4528406 - 09/28/17 12:20 PM Re: 0-20 & 10-30 oil mix [Re: Shata]
Shata Offline


Registered: 10/21/16
Posts: 169
Loc: Virginia, usa
Ya it was top off and had nothing other left laying around it be fine if anything it brings it back into viscosity spec. Appreciate the Reply's and input.
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16 Silverado 2500 6.6 Dmax
15w-40 Chevron Delo SDE
Frantz bypass /w AC Delco pf2232
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#4528411 - 09/28/17 12:26 PM Re: 0-20 & 10-30 oil mix [Re: Shata]
Shata Offline


Registered: 10/21/16
Posts: 169
Loc: Virginia, usa
Normally what I see is 0w-20 pp is little low of viscosity spec range anyways during my UOA, still within spec but low so this should bring it right into middle-high side. We'll see I'll post it up when I pull the sample just for sake of speculation.
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16 Silverado 2500 6.6 Dmax
15w-40 Chevron Delo SDE
Frantz bypass /w AC Delco pf2232
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#4528415 - 09/28/17 12:28 PM Re: 0-20 & 10-30 oil mix [Re: ARCOgraphite]
Shata Offline


Registered: 10/21/16
Posts: 169
Loc: Virginia, usa
Originally Posted By: ARCOgraphite
THERE ARE NO SAE GRADE NUMBERS BETWEEN 0W/5W/10W OR 20/30/40 its EITHER IN THE MARGIN OR NOT.

Then there came frickin 16 grade ! That was a mistake.



Well I know that I was just Using avg in sump and what I added to see theoretically how much it would effect the grade lol
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16 Silverado 2500 6.6 Dmax
15w-40 Chevron Delo SDE
Frantz bypass /w AC Delco pf2232
---------

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#4528428 - 09/28/17 12:40 PM Re: 0-20 & 10-30 oil mix [Re: oil_film_movies]
Shata Offline


Registered: 10/21/16
Posts: 169
Loc: Virginia, usa
Originally Posted By: oil_film_movies
Shata, you're right, it would affect the very cold end of things to make it a 5w-20, since T5 is not a full synthetic.
Hot viscosity will go up by just 0.3 at kv100.
kv100 goes from 8.0 to 8.3.
http://www.widman.biz/English/Calculators/Mixtures.html

Thanks that's helpful site for mixing!
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16 Silverado 2500 6.6 Dmax
15w-40 Chevron Delo SDE
Frantz bypass /w AC Delco pf2232
---------

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#4528433 - 09/28/17 12:51 PM Re: 0-20 & 10-30 oil mix [Re: Shata]
kschachn Online   content


Registered: 12/26/05
Posts: 9373
Loc: Upper Midwest
Originally Posted By: Shata
Thanks that's helpful site for mixing!

Yes for viscosity only however, remember that any mixture is not necessarily going to meet any specification regardless of what you're starting with.
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