Having grown up with manual transmissions and conservatively estimating 1,000,000 plus miles operating such a system I am fairly confident that the 3.5L EcoBoost is not "lugging" at a constant 10mph in "D" mode. If it was "lugging" it would drive like it is lugging, but it isn't. It's just getting hot as blazes.
There have been a few comments about reduced internal cooling at low rpm, this combined with reduced radiator cooling at low speed seems to be pertinent to my original post inquiry.
The video about pre ignition seems noteworthy, but that kid isn't really discussing a normal driving context. He likely does not even know it because he finds the information interesting enough to make sweeping assumptions and imagined conditions to support the ideas. The claim that Toyota had to proactively introduce flammable contaminants to the piston chamber to create a pre ignition prone environment so they could reliably produce a pre ignition condition was entertaining. The ideas presented in the video seem relevant to Toyota Supra drivers who race the 24 hours at Sebring, or sneak onto the Martinsville Speedway oval for a 500 mile goose, brake, goose time trial.
An occasional hole shot or pocket pass on the race to the next red light while you are heading to your spin class isn't going to gouge your pistons.
I am loading ODBwiz on a tablet and will have it hooked up the next time I drive the Transit on an outing, and will observe how the system works with Tow/Haul, and Manual gear selection so that the engine runs near 1500 rpm.
Thank you.
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