Pennzoil Q&A

Click here to participate in the Pennzoil Q&A

Recent Topics
Sure am glad I don't live up north
by Jimmy9190
08/29/15 10:56 AM
6 HOURS OF NURBURGRING
by Guitarmageddon
08/29/15 09:59 AM
2000 Jeep Wrangler Coolant
by outoforder
08/29/15 09:12 AM
Pennzoil Q&A - Valve Train and Timing Chain Wear
by wwillson
08/29/15 08:22 AM
2013 hyundai sonata 2.4
by Grambo
08/29/15 06:03 AM
Oskkosh JLTV
by Merkava_4
08/29/15 05:45 AM
Bank 2 exhaust manifold on 1MZFE V6
by artbuc
08/29/15 01:51 AM
Thoughts on 2016 Acrua MDX 9 Speed Trans
by BISCUT
08/29/15 01:16 AM
Can I mix these? Same thing? (Castrol Edge STP/US)
by fernandoar
08/29/15 01:09 AM
Looking for YouTube channels
by Merkava_4
08/29/15 12:25 AM
Pennzoil confirms CaSa contributes to LSPI, maybe.
by wemay
08/29/15 12:20 AM
What's so special about the ACDelco PF65 ?
by Merkava_4
08/29/15 12:11 AM
Newest Members
BennyD, Boomsucka, highrzr, Profrat, MightMirage
55185 Registered Users
Who's Online
52 registered (bchannell, akela, Al, bbhero, ag_ghost, AZjeff, 8 invisible), 1465 Guests and 143 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
55185 Members
66 Forums
236648 Topics
3812902 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3228506 - 12/26/13 05:26 PM Cummins 6BT Thermostat Question
madibob Offline


Registered: 04/24/09
Posts: 118
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)
_________________________
2002 Toyota Tacoma 3.4L 4X4
2000 Ford F350 7.3L
1996 Ram 2500 Cummins 5.9L

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


Registered: 06/05/03
Posts: 12837
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 durablend 10w40
87 F250 Diesel Mystic 15w50
04 Tahoe super-s 5w30
Z400 Lucas 10w30
KLR250 Maxima 10w40
Polaris Trailblazer delo 5w40

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


Registered: 04/24/09
Posts: 118
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
_________________________
2002 Toyota Tacoma 3.4L 4X4
2000 Ford F350 7.3L
1996 Ram 2500 Cummins 5.9L

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


Registered: 11/05/13
Posts: 1326
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: 307
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: 4838
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 48RE SRW, 93 GMC C3500 6.2 diesel, 89 F-450 7.3 IDI, 98 Cherokee 4.0, 05 Scion xB, 15 Transit 250 3.7

Top