DOC-MX
FOREIGN MEMBER
Nope, the stock one was 190* IIRC or 195*. long stant.
203* thermostat...???
- Thread starter rammertide07
- Start date
Nope, the stock one was 190* IIRC or 195*. long stant.
Diezel Dawg
vvv Real NW Truck
There really is no benefit with the 203* TStat. I have had mine in for quite some time, maybe 20-30K miles. It did allow for warmer heat in the winters, which i like.
However, while i was being live tuned by Jody Tipton at DPTuner last week, he was watching my coolant and oil temps and my Oil temps were as high as 221-223* which is no good. This will cause your engine oil to break down much sooner. Oil temps shouldnt be any higher than 210*/. When i get back from Colorado Springs at the end of May, a stock 195* thermostat is going back in my truck.
oh and i didnt see any increase in mileage
However, while i was being live tuned by Jody Tipton at DPTuner last week, he was watching my coolant and oil temps and my Oil temps were as high as 221-223* which is no good. This will cause your engine oil to break down much sooner. Oil temps shouldnt be any higher than 210*/. When i get back from Colorado Springs at the end of May, a stock 195* thermostat is going back in my truck.
oh and i didnt see any increase in mileage
LonestarBronco
Full Access Member
My exhaust smells better. That is the biggest improvement I have noticed. A little smoother when fully warm for sure, but the big rig smell is the real gain 
Tail_Gunner
CRJ & ERJ A&P Mech.
My exhaust smells better. That is the biggest improvement I have noticed. A little smoother when fully warm for sure, but the big rig smell is the real gain
Come on now!! Everybody know their own "exhaust" smells OK.
dogtrk
Pat
Me 3. Had the 203* in for over 100K. Wouldn't be without it. Simply runs better with it. NO big claims.. just runs better.
I have a "real" temp gauge, along with the OEM thing. I see temps change from about 195+ to 205, or so .. as loads are put on the engine.. The OEM thing doesn't move.. At All, Ever.
A Warm(er) internal combustion engine runs better Warm(er), IMO.
Joe
(The competitive motor sports guys run their engines Warmer... Hmmm, wasup with that ?)
I have to agree with Joe. I've had the 203 in my Diesel for about 2.5 yrs. now; warms up the engine a lot quicker and seems to run smoother. I'm not mechanic but the guy that works on my truck said he definitely saw a difference with the 203. JMHO.
