Recent Topics
What Happens When You Over Tighten a Gasket?
by Surprise
42 minutes 10 seconds ago
This guy might be serious
by Merkava_4
Today at 01:39 AM
Transmission fluid 261K miles, never serviced.
by tinmanSC
Today at 01:16 AM
Saving for college
by jay929
Today at 01:03 AM
Coolant temp fluctuating
by sifan
Today at 12:16 AM
If I was hacked...would hackers attacked me more?
by tgrudzin
Yesterday at 11:47 PM
Thought it would take years to come....but
by shDK
Yesterday at 11:37 PM
Rocker arms: one side varnished, one clean
by HawkeyeScott
Yesterday at 10:40 PM
Will this oil cleaning experiment work?
by HawkeyeScott
Yesterday at 10:25 PM
Fun car/truck for $6000?
by Leo99
Yesterday at 09:05 PM
2003 Cadillac Seville SLS
by 285south
Yesterday at 09:02 PM
0-40 European formula
by Rugman
Yesterday at 08:59 PM
who makes supertech (wal mart) wipers
by edwardh1
Yesterday at 08:40 PM
Mobil 1 Annual Protection now at Meijer!
by njohnson
Yesterday at 08:39 PM
Car top carrier suggestions for Camry.
by skaughtz
Yesterday at 08:19 PM
QS Defy $0.01 per quart - Walmart Canada
by Run
Yesterday at 07:48 PM
NOCO Genius G7200 charging algorithms?
by mv6845
Yesterday at 07:32 PM
2000 Subaru Outback parts car - price to offer?
by pacem
Yesterday at 07:19 PM
Check your shackles.
by dlundblad
Yesterday at 07:14 PM
Fram COR3614TLE cut open
by FlyingVan
Yesterday at 07:01 PM
Newest Members
Carlostrece, bee, tankdriver, tradarcher, Caliber
60988 Registered Users
Who's Online
12 registered (asiancivicmaniac, hpb, dlundblad, Merkava_4, Black_Thunder, 1 invisible), 987 Guests and 9 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
60988 Members
66 Forums
262873 Topics
4339848 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: 119
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

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


Registered: 06/05/03
Posts: 14850
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

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


Registered: 04/24/09
Posts: 119
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

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


Registered: 11/05/13
Posts: 3113
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: 408
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: 6373
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(CQ Blue)

Top