Warm up question

Just a random observation, but my 2020 5.7 tundra seems to warm up faster than any other vehicle I’ve owned.
I don’t really idle it before driving, just get in set my phone up and go. By the time I’m to the freeway in the morning (a little under 2 miles) temps are reading in the middle of the gauge.
This is my first truck and also first V8 vehicle. Other vehicles I’ve owned have mostly been 4 or 6 cylinder cars, most with turbos. They have taken 3-5 miles to get to the same reading.
Anyone else have a similar experience or input on how this engine warms up so quickly?
I’d also be interested to see if anyone has feedback on the new 3.4TT engine warmup time compared to the 5.7 if you’ve owned both.

 

The faster that the engine, oxygen sensors and catalytic convertor hit operating temperature and the system achieves closed loop, the better the energy efficiency and emission control. So, from a design standpoint, the Toyota Engineers want this to happen as quickly as possible and have no doubt made a number of improvements versus older models. One thing that could help in this regard is the elimination of the external trans cooler.

 

Just sold my 2015 and purchased a 2020 and noticed this. The 2015 cold start idle seemed higher noticeably longer.

 

That makes sense! I didn’t think about the trans cooler. Hats off to Toyota from a design perspective.

 

The only way to really know is by using a scangauge or other OBDI scan tool. I can monitor water and two different transmission temps with the scangauge II. It takes a lot more than a couple of miles to get to operating temps.

 

When I cold start my 2018 Tundra in the garage, I wait until the oil pressure gauge stops climbing and then shift into R to back out. Always have done this even with my 2006 Tundra. Close to operating temp (coolant) in about 3 miles. Oil temp takes about 8-10 miles to stabilize (not measured on Tundra but other cars I've owned).

Dan

 

I think mine also warms up in 2-3 miles depending on the throttle I just let my tach drop to 1k before shifting into drive. This would probably be most affected by ambient temp and humidity but not sure.

 

Get in start and on the road in like 30 seconds for me.

 

My 2008 takes longer than my 2021. The 21 is faster due to the removal of the transmission cooler.

 

Well the transmission cooler has a thermostat… so wouldn’t that take the transmission cooler out of the equation? It would be closed until warm up. I could be wrong. I have been wrong before.

 

As stated above, the transmission cooler has a thermometer so the fluid doesnt flow through it until the ATF pan temp reaches around 185°. I regularly watch my temps in my truck and let it warm up until the ATF is about 60° which happens pretty quickly, only 5 minutes even on a really cold day. The torque converter will not lock up though until the ATF reaches 100°. Also if you have automatic climate control, heat doesnt start coming out until the coolant reaches 100°. That said, these truck definitely warm up very quickly and really dont need much more than a 5 minute warm up even on freezing days. Only time I run my longer than that with the remote start is if its iced over or snowed on. These things burn a ton of fuel just sitting idle, about .5 gallons an hour and more when its cold at high idle so that would explain the fast warm up time.