Welcome To Mopar1973Man.Com LLC
We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features. Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.
- Replies 11
- Views 1.3k
- Created
- Last Reply
Top Posters In This Topic
-
Mopar1973Man 7 posts
-
Doubletrouble 2 posts
-
01_Cummins_4x4 1 post
-
5akman 1 post
Most Popular Posts
-
Here it is...
-
Update... I produced a towing tune and took off for a 5 day camp trip down near Fiddle Creek which is just south of Lucile ID. I can say I hit proper timing in the first try and oil temper
Featured Replies
Did This Forum Post Help You?
Show the author some love by liking their post!
Welcome To Mopar1973Man.Com LLC
We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features. Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.
Starting back in the beginning of 2023 winter I opted to play with 200 degree Cummins thermostat from a 6.7L Cummins. Now as winter got to the coldest of minus 7 degrees I was happy to keep a warm cab and engine. I watched over the winter time and as I was able to keep temps above 80 degrees in the intake manifold (IAT) I noticed an improvement in MPGs because cold air does rob the engine of ignition quality and more heat energy is not wasted to the coolant jacket.
Now fast forward to now. I made a trip to Lewiston ID for monthly supplies and food. Still running a 200 degree thermostat in 90 degree weather. This is a Gates Thermostat and seems to hold steady between 200 and 210 degrees of coolant. Even climbing 7% grades everything still running normal specs and no issues. I'm happy to say MPG wise I didn't quite use a 1/4 tank more like 3/16 of a tank in a one way pass from home to Lewiston ID. Level ground EGT's are still cool. Engine oil temperature barely touched 178 degrees even climbing long 7% grades. Boost was between 10 and 13 PSI.
Flat ground cruise
Edited by Mopar1973Man