Recent Topics
Do Your or Will You Take Care of Your Kid's Cars..
by Speak2Mountain
9 minutes 35 seconds ago
2002 Toyota 4runner
by davizzel
26 minutes 3 seconds ago
Did DT give you any issues when you brought your
by WhyMe
Today at 03:10 PM
Webers Limited Red Kettle
by Malo83
Today at 03:08 PM
Spinal alignment anyone?
by StevieC
Today at 02:55 PM
Tire Ageing
by Malo83
Today at 02:33 PM
MC FL-500S vs BOSS 22500
by AntDeek
Today at 01:55 PM
Petro-Canada Duron oils perform like Synthetics
by wemay
Today at 01:40 PM
Self healing diamond like coating
by DriveHard
Today at 12:43 PM
Year old oil in new car
by Indydriver
Today at 12:11 PM
Twin Turbo 4cyl Engine for 2019 Silverado 1500?
by SubLGT
Today at 10:40 AM
Bob Lutz Strikes Again and Again
by Y_K
Today at 10:23 AM
API Base Oil Groups 1 - V.
by DWC28
Today at 09:36 AM
Honda Element 555,555 miles!
by fenixguy
Today at 09:14 AM
How to brine my turkey before smoking it?
by Ed_Flecko
Today at 09:11 AM
The heaviest and lightiest oil u have used?
by ZZman
Today at 08:03 AM
Why are old tools better?
by motor_oil_madman
Today at 07:41 AM
Mobil Delvac 5w40 - 10 Yr Engine Tear Down
by StevieC
Today at 06:35 AM
delo sae 30 & 40 CF/SL
by jakewells
Today at 06:22 AM
New generations of oils begin to take hold
by wemay
Today at 05:56 AM
Newest Members
WmJ, MJ90, Davej98092, pabloabarth, shore48
63462 Registered Users
Who's Online
80 registered (Alfred_B, 2K2AcuraTL, 07titan, A310, Al, 28oz, 6 invisible), 2103 Guests and 13 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
63462 Members
66 Forums
274124 Topics
4556259 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#3228506 - 12/26/13 05:26 PM Cummins 6BT Thermostat Question
madibob Offline


Registered: 04/24/09
Posts: 129
Loc: Minnesota
I know there are more dedicated websites for this question, but there are a lot of smart folks here. I have the '96 Dodge with the 6BT. I found this fall that when I blocked off part of the radiator, the truck ran warmer and my MPG jumped. My guess is around 2 MPG (I haven't checked it real close yet).

Here's my question - The stock thermostat is 180*F. Cummins never made a hotter thermostat that I could find. From other forums, there is a thermostat for a gas engine that is 195*F that fits. Some of the WVO folks seem to be using these. What are the risks of going to this hotter temperature on this engine? I don't pull much and if I do it isn't very heavy.

Please post if you have any knowledge or experience....not looking for opinions.

Oh, and I should mention the newer 6.7L engines do have a 190*F option.


Edited by madibob (12/26/13 05:28 PM)
_________________________
2015 Porsche Boxster S
2002 Toyota Tacoma 3.4L 4X4
2000 Ford F350 7.3L 4X4

Top
#3228515 - 12/26/13 05:35 PM Re: Cummins 6BT Thermostat Question [Re: madibob]
Chris142 Offline


Registered: 06/05/03
Posts: 15815
Loc: apple valley, ca
Are you sure that it dont have a 195 stat? The one for the gasser is a big block dodge but it wont have the correct bypass restriction
_________________________
02 Wrangler super-s 10w30
87 F250 proline 15w40
04 Tahoe super-s 5w30
Z400 Lucas 10w30
KLR250 Maxima 10w40
Can am maveric edge 5w40
57 case tractor 15w40

Top
#3228520 - 12/26/13 05:40 PM Re: Cummins 6BT Thermostat Question [Re: Chris142]
madibob Offline


Registered: 04/24/09
Posts: 129
Loc: Minnesota
Originally Posted By: Chris142
Are you sure that it dont have a 195 stat? The one for the gasser is a big block dodge but it wont have the correct bypass restriction


I read to drill 2 holes in the one for the big block dodge for this. That was my understanding.

BTW - There's also a 200*F thermostat for the 6.7s
_________________________
2015 Porsche Boxster S
2002 Toyota Tacoma 3.4L 4X4
2000 Ford F350 7.3L 4X4

Top
#3228555 - 12/26/13 06:23 PM Re: Cummins 6BT Thermostat Question [Re: madibob]
Ramblejam Offline


Registered: 11/05/13
Posts: 3152
Loc: Kentucky
Gates Part # 33039S -- $4.93 on RockAuto.

Works great for your intended purpose. Just make sure to remove it when warmer temps return.


Top
#3228562 - 12/26/13 06:34 PM Re: Cummins 6BT Thermostat Question [Re: madibob]
Boczech Offline


Registered: 11/19/05
Posts: 450
Loc: Norcal
Originally Posted By: madibob
Originally Posted By: Chris142
Are you sure that it dont have a 195 stat? The one for the gasser is a big block dodge but it wont have the correct bypass restriction


I read to drill 2 holes in the one for the big block dodge for this. That was my understanding.

BTW - There's also a 200*F thermostat for the 6.7s


Looks like the newer 6.7 engines starting in 2010 call for the 200*F thermostat. http://www.genosgarage.com/Cooling-System/products/219/ I have read some of the 2nd generation 24v folks on another forum trying the 200*F thermostat's in their truck with a slight gain in fuel mileage.


Cheers
B
_________________________
1996 Dodge RAM 2500 5.9l diesel

Top
#3228616 - 12/26/13 07:27 PM Re: Cummins 6BT Thermostat Question [Re: madibob]
bullwinkle Offline


Registered: 10/09/04
Posts: 6885
Loc: Cincinnati, OH, USA
Remember that with an INTERCOOLED turbo diesel, you are introducing cooled intake air into the engine at all times-that's why a winter front on the grill is used in winter. Not sure the thermostat will make a big difference unless you are towing or hauling heavy loads-a lot of people just put something between the intercooler & radiator with a fan clutch sized hole in the middle to restrict airflow.
_________________________
06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 15 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)

Top