the max pressure on the sidewall is for ultimate safety margins. u can, under "normal" circumstances, easily exceed the rating by 50% with minimal compromise to your safety.
now, we cant always predict that driving conditions will be normal and a sudden pothole may be unavoidable.
i put my tires to 42 PSI all the way around on day 2 of ownership. i have no doubt that it makes a difference. on my Prius, i am guessing that i am getting 2 mpg increase from the standard 35/33 to 42/40 F/R
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 412 mi, 99.72% SOH
My Blog; http://daveinolywa.blogspot.com
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