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Re: Increased oil capacity = lower pil temps ? [Re: SavagePatch] #5051525 03/23/19 12:57 AM
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Shannow Offline
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You are not increasing the surface area by much....however, increased heat transfer to the environment.

The oil cycle time is increased, meaning that there's longer residence time between trips....increased ability to transfer heat between trips to the engine...however if it DOES reduce oil temperatures, that's a reduced rate of heat transfer.

Convective heat flow works with relation to velocity of the oil across the metal...reduced heat transfer.

SOOOOO....I think it's likely a wash


If it's the truth....it can handle the pressure !!!
Re: Increased oil capacity = lower pil temps ? [Re: SavagePatch] #5051576 03/23/19 04:47 AM
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roadrunner1 Offline
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I'm not aware of how your truck is designed but most new diesel pickups have an oil cooler intergrated into the cooling circuit along with it being thermostatically controlled. Before one started to throw money at something it would be wise to do your research as engineers are paid to design these systems to work within a wide parameter of operating conditions. Your attempt to add cooling may be nullified if there is already a thermostat within the system.


'15 F350 6.7
Re: Increased oil capacity = lower pil temps ? [Re: SavagePatch] #5055287 03/27/19 04:43 AM
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dnewton3 Offline
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1) small changes in volume don't make for big differences in temps
2) any change for the positive can also be a negative in the opposite season (takes longer to warm up)
3) unless your truck is maxed out at the cooling conditions, it's likely you'd never see this "benefit" because the t-stat controlled cooling system is managing the oil temps more so than a finned Al pan will ever achieve
4) thermal transfer basics escape most people ...
5) what are your current temps? Are you confident that you're in a condition that "needs" a cooling boost? (probs not; you're just sucked into marketing hype ....)

You should probably stack the deck in your favor ....
- add the larger pan
- run syn lube; everyone knows they always run cooler
- use a larger oil filter; if some capacity gain is good, then more must always be better, right? (it's the Amurikan way!)
- add a remote oil filter system; get more oil capacity on top of the already larger oil filter!
- remove the grill; too much drag from the chrome-laden obstruction restricting airflow
- add water/meth injection; you can never be "too cool" for ol' skool


The act of preventative maintenance, in and of itself, is FAR MORE important than brand/grade/base choices among lubes and filters.
- under maintaining something is akin to abuse/neglect; that can kill equipment by shortening the lifespan
- over maintaining something has never been proven to be anything but a waste of time and money
Re: Increased oil capacity = lower pil temps ? [Re: SavagePatch] #5057277 03/29/19 02:39 AM
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DoubleWasp Offline
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Sad thing is, Ram actually did have chrome grilles too restrictive for effective cooling. LOL


07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio
Re: Increased oil capacity = lower pil temps ? [Re: SavagePatch] #5057885 03/29/19 03:06 PM
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A_Harman Offline
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How hot has the oil been getting?
How many rpm's is the engine turning when you're climbing hills?

Increased residence time of the oil in the pan would be a positive, allowing it more time for de-aeration before the pump sends it back to the pressurized gallery.


1985 Z51 Corvette track car
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel
1972 GMC 1500 shortbed project truck
Re: Increased oil capacity = lower pil temps ? [Re: A_Harman] #5058445 03/30/19 08:06 AM
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SavagePatch Offline OP
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The oil has gotten as hot as 260°. I keep the rpms at 3k or less while climbing.

Re: Increased oil capacity = lower pil temps ? [Re: DoubleWasp] #5058447 03/30/19 08:10 AM
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SavagePatch Offline OP
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Originally Posted by DoubleWasp
Sad thing is, Ram actually did have chrome grilles too restrictive for effective cooling. LOL


Ya, a lot of owners who paid more for the Laramie are changing out their gaudy chrome grills for the less restrictive black grills of the lower models (ie: Tradesman).

Re: Increased oil capacity = lower pil temps ? [Re: SavagePatch] #5058472 03/30/19 08:43 AM
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ofelas Offline
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If you're seeing those temperatures hauling a travel trailer, I'm not sure increasing your oil capacity from 10.5 to 12 quarts will solve your truck's issue.


R12 in the summer, Webasto in the winter, and cassette tapes all year.
Re: Increased oil capacity = lower pil temps ? [Re: SavagePatch] #5058578 03/30/19 11:01 AM
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BigShug681 Offline
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Looks like it’s time for a bigger truck. How big is the travel trailer, what’s the oil temp run normally?


2006 F350 DRW 6.0 PSD with a ZF6 6Speed. If you can't find it or float it then just grind it
Re: Increased oil capacity = lower pil temps ? [Re: ofelas] #5058681 03/30/19 01:28 PM
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SavagePatch Offline OP
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Originally Posted by ofelas
If you're seeing those temperatures hauling a travel trailer, I'm not sure increasing your oil capacity from 10.5 to 12 quarts will solve your truck's issue.


I don't really think that my truck has an issue. All of these 3.0L's run hot. I just thought that if an easy $100 bolt-on "upgrade" would help then I would go for it.

I did buy the pan and will change ot out next OCI. I'll take before amd after reads of the pans surface temperature and record the oil temps. I jave a very predictable commute that I can use for comparison. (This would all be for fun and I realize that it is non-scientific)

Re: Increased oil capacity = lower pil temps ? [Re: SavagePatch] #5059042 03/30/19 09:37 PM
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DoubleWasp Offline
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Accidentally did a double

Last edited by DoubleWasp; 03/30/19 09:41 PM.

07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio
Re: Increased oil capacity = lower pil temps ? [Re: SavagePatch] #5059045 03/30/19 09:40 PM
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DoubleWasp Offline
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Increased capacity will do nothing for ultimate temperature. It will give it greater reserve to resist it at best.

Consider an auxiliary air/liquid oil cooler for when the warranty is done. HDEO can take the heat. Don't worry for now.

Originally Posted by SavagePatch
Originally Posted by DoubleWasp
Sad thing is, Ram actually did have chrome grilles too restrictive for effective cooling. LOL


Ya, a lot of owners who paid more for the Laramie are changing out their gaudy chrome grills for the less restrictive black grills of the lower models (ie: Tradesman).


I've been thinking about replacing the "slats" in my OEM grilles with black billet stainless honeycomb inserts. Gonna have to do something with them anyway. They've both been hit by road debris enough times that a few of them are shaking loose. Stainless ought to take a hit better than plastic.


07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio
Re: Increased oil capacity = lower pil temps ? [Re: SavagePatch] #5061047 04/01/19 03:49 PM
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A_Harman Offline
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Originally Posted by SavagePatch
The oil has gotten as hot as 260°. I keep the rpms at 3k or less while climbing.


That's not excessively hot for oil temperature. 3000 rpm for 5-10 minutes just sounds like a good workout for the engine to me.
The extra oil capacity doesn't sound like a bad idea to me. You might not see any significant difference in real-world driving, but it may help in the long term. Maybe you'll less oxidation if you're doing UOA's.


1985 Z51 Corvette track car
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel
1972 GMC 1500 shortbed project truck
Re: Increased oil capacity = lower pil temps ? [Re: SavagePatch] #5061486 04/02/19 04:57 AM
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Just remember, the engine in the crankcase will be hotter than the oil temperature reading from the sensor. I have done some measurements in the 6.0L diesel, the oil pan oil temperature can easily be 50 degrees hotter than the EOT sensor reading. Maybe even higher at localized locations within the engine.


2006 F250 6.0L PSD CC SB FX4
Re: Increased oil capacity = lower pil temps ? [Re: SavagePatch] #5061600 04/02/19 06:54 AM
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Do you know where the oil temp sensor is on this particular truck/engine? Is it located in the sump or up higher on the engine somewhere?

I closely monitor oil temps due to owning a 6.0 PSD as well and our oil temp sensor is up top by the oil filter which is somewhat a false reading, as Bismic said the oil in the pan (16 quarts in this engine) is usually much hotter.

I'd be sweatin bullets if I saw oil temps of 260* in my 6.0, thats all I can say! We start worrying around 245* smile


Just say NO to thin oils and M1!
05 F350 Powerstroke
05 Hyundai Tucson
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