@eric@cncfab have y’all sold any of these?

@AmericanKing is running one

https://www.powerstroke.org/threads/spe-low-temp-thermostat.1387702/#post-16633455

 

I could see lower temps causing lower MPG. I bought the thermostats when I purchased the coolant reroute kit. Just wasn’t convinced it was the way to go

 

I had it. It works. Meant for the 2017 and up where the tranny is cooled by the primary system and for people who tow daily in hot climates. I went back to stock since I have no use for it. It kept the engine too cool. It will affect mpg in a negative way for trucks that don't have all fuel maps tuned exactly the same since the 6.7 changes engine modes based on ECT. On cool days it will stay below 167° which is the mode transfer temp.

 

I ran one for a few months before weight loss and it did help. I had to take it out afterwards because it was running to cool. It's sitting in the toolbox now. I don't think it's needed post weight reduction.

 

What were your temps before and after reduction?

 

With the spe thermostat I would see 175-180 coolant temps and <200 oil temps. Before the alterations the temps were consistent 195-210 coolant and 200-220 oil temps. They were 10-15 ° higher before the spe thermostat, I would see 250 on oil temps on hills. The thermostat did help, but not needed after the weight reduction. My coolant temps stay 185-195 and oil temps pretty close to that.

 

Before the alterations the temps were consistent 195-210 coolant and 200-220 oil temps. They were 10-15 ° higher before the spe thermostat, I would see 250 on oil temps on hills.

And the problem was what? 250F oil is a very long way below the limit.

 

The problem was it was my truck and this is a free country, so I put the SPE thermostat to bring the temps down. Why even post that? It adds nothing to the conversation.

 

I put the SPE thermostat to bring the temps down. Why even post that? It adds nothing to the conversation.

I suppose that I thought that you had a reason to do it, and you've clarified that you did it merely because you were able to. Cool.

 

Sorry, took that as a smart *** comment. I've been on too many Facebook forums. But no real reason, I just get easily sucked into using things I don't need.

 

Sorry, took that as a smart *** comment. I've been on too many Facebook forums. But no real reason, I just get easily sucked into using things I don't need.

You ain't alone in that, for sure. And people who know me in real life are kinda primed for me to be a smartass, so... it's all good.