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#3447814 - 08/06/14 11:42 AM Re: 5w-50 | help me choose? [Re: MRT]
A_Harman Offline


Registered: 10/01/10
Posts: 6024
Loc: Michigan
It's strange that there are not very many 50-weight oils that are formulated for diesels. Don't truckers use Lucas Oil Stabilizer to thicken up their 15w40's once the engines start to use oil at a high rate?

It seems like a waste to me to use 5w50, which is only available as a synthetic, in a vehicle that has an oil consumption problem.

Shell does make a monograde 50-weight if you never plan on starting your truck at lower than 40F.


Edited by A_Harman (08/06/14 11:48 AM)
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1985 Z51 Corvette track car
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel
1972 GMC 1500 shortbed project truck

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#3448068 - 08/06/14 04:21 PM Re: 5w-50 | help me choose? [Re: MRT]
Shannow Online   content


Registered: 12/12/02
Posts: 33149
Loc: Oz
Maybe you can contact this mob
http://www.3pconnect.com/brands.html

They import Oz Penrite lubricants, which make a range of disel lubricants of some not common (and some REALLY not common) viscosities.

http://www.penriteoil.com.au/products-categ.php?id_categ=1&id_fuel_type=3

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#3449991 - 08/08/14 05:11 PM Re: 5w-50 | help me choose? [Re: MRT]
dparm Offline


Registered: 04/19/10
Posts: 13024
Loc: Chicago, IL
I'd be more inclined to run a thicker 5w40, such as Rotella T6 (HTHS 4.2ish) or Red Line (HTHS 4.4). Red Line's 5w40 is basically a 50-weight anyway -- if you look at Mobil 1 15w50, you'll see the same HTHS.

With the Red Line, you could always slightly thicken the 5w40 with a quart of their 5w50 or something.

Heck, there's stuff like Castrol Edge Professional TWS 10w60, too. It's API SN, has outstanding cold-start properties, and the HTHS stabilizes to around 4.5 after some early shearing. Supposedly one of the reasons BMW chose it for the M cars was to minimize leaking (when cold) and consumption (when run on the track/autobahn).
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#3457436 - 08/16/14 05:14 PM Re: 5w-50 | help me choose? [Re: Shannow]
MartyStaggs Offline


Registered: 08/27/13
Posts: 1
Loc: CAL
Originally Posted By: Shannow
Maybe you can contact this mob
http://www.3pconnect.com/brands.html

They import Oz Penrite lubricants, which make a range of disel lubricants of some not common (and some REALLY not common) viscosities.

http://www.penriteoil.com.au/products-categ.php?id_categ=1&id_fuel_type=3


Try Summit Racing -

Summit Racing

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#3457741 - 08/17/14 01:19 AM Re: 5w-50 | help me choose? [Re: MRT]
Shannow Online   content


Registered: 12/12/02
Posts: 33149
Loc: Oz
They are good prices...about what I pay here.

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#3457877 - 08/17/14 09:28 AM Re: 5w-50 | help me choose? [Re: MRT]
aquariuscsm Online   content


Registered: 12/30/06
Posts: 13600
Loc: South Texas,USA
I've never seen Amalie motor oil before. That Elixir must be rare as hen's teeth! Who sells it?
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#3460117 - 08/20/14 09:13 AM Re: 5w-50 | help me choose? [Re: MRT]
virginoil Offline


Registered: 09/05/05
Posts: 1460
Loc: western australia
Out of the 3 I would use Mobil 1, definitely not the Redline.


Edited by virginoil (08/20/14 09:13 AM)
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#3461221 - 08/21/14 11:47 AM Re: 5w-50 | help me choose? [Re: aquariuscsm]
A_Harman Offline


Registered: 10/01/10
Posts: 6024
Loc: Michigan
Originally Posted By: aquariuscsm
I've never seen Amalie motor oil before. That Elixir must be rare as hen's teeth! Who sells it?


Lane Automotive in Watervliet, Michigan carries a lot of Amalie products.
_________________________
1985 Z51 Corvette track car
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel
1972 GMC 1500 shortbed project truck

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#3461224 - 08/21/14 11:55 AM Re: 5w-50 | help me choose? [Re: MRT]
A_Harman Offline


Registered: 10/01/10
Posts: 6024
Loc: Michigan
Originally Posted By: MRT
15w-50 may be a good choice, any comments on 5w-50?


Yes, M1 15w50 you can get at good prices in many places, so it would be worth a try.

Redline 10w50 is plenty stout, if you don't mind pouring in an $11 quart of oil every 3000 miles.
_________________________
1985 Z51 Corvette track car
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel
1972 GMC 1500 shortbed project truck

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