So about a month ago I changed the tires on the X5 to a more comfortable Bridgestone Ecopia. Overall not the best or worst tire I've ever owned. I prefer a Pirelli Scorpion on my SUVs but my brother is regional manager @ Bridgestone so I got a heavy, heavy discount. They are whisper quiet, nicely sticky and ride nicely.

I inflate my tires to 35 psi front and rear because I hate that mush feeling you get from 32psi. I recently got nabbed going 107 on a back road in the 135 so I've been using the X5 as my daily driver.

With these tires, most amazingly I have noticed a HUGE bump in gas mileage. Like 3-4 mpg. I was averaging 19.4mpg and am now sitting at 22.6. A tank of gas is lasting longer and I am pleasantly surprised. I have made zero changes to my driving style (still an asshole) and was just shocked at the change.

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2010 X5 3.0 X-drive Titanium Silver/Black
2018 Ford F-150 Platinum Crew
2010 528xi (His)
2017 M2 Manual (His)

Former Headaches:
2008 X5 RIP
2015 M235
2013 135is
2009 535xi Wagon (JUNK)
2007 530xi 6spd CPO Sport (Best Damn Car EVER)
2011 335xi M-sport Coupe 6spd (Sex on Wheels)
2010 550GT "CPO" (Junk)
2012 X5 35d "CPO" (More Junk)
2004 330i ZHP Sedan
2002 325xi Wagon
2000 323i Sedan
1998 M3 Sedan
1992 325i Sedan