LL75
Well-Known Member
definitely will be more efficiency going from 34" to 33" and from AT to AS.I'm installing 275/60-20 on my R1T tomorrow. I have 35K on my OEM ATs with an overall efficiency of 2.11 mi/kWh (according to the truck). It will be interesting to see what my new efficiency will be. I mainly drive all-purpose mode and like to drive a little faster than the speed limit.
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