[justme1969]

I cannot testify for your own vehicle results but effects basically flat line at some point so trial and error is key for sucess. I tested over 4+ months to get my base line effect. 41 front and 32-34 rear.
The gains after 41 front were so negligable that I couldnt tell from varieations in real world driving @ 50+ psi.
I did manage to destroy 2 cheap douglass tires in front end testing.
The rears after 30 psi results were impossible to quantify in reality.
I did note excessive center wear issue that could only be attributed to over 50 psi testing for a few months. My digital FOWLER calliper does not lie.
Non specific failure also seen was a sidewall blister but that could have come from cheapo douglass tires alone or could have been from a speed bump I have no way of knowing how long it was there or why due to inside rear location. "I just dont get under my car much."
I am sure you will see same results from lower pressures as I did, but yes the advantage is there if you dont cause tire issues, and the darned things are expensive now especially LRR tires. Any FE gains I made went out the window when compared to $245 tire replacement costs. And the bumpity bump pulling to the right side ride I delt with for 2 weeks before that.