Is My Car Mechanic Giving Me Bad Advice?

<p>What Engine Oil Weight do I use in my 1999 Chevy Suburban?<br /> Why does my 1996 Silverado drop out of Overdrive?<br /> Why does my 2012 Jeep get hot when I drive it hard?<br /> Why do my Chevy Trax Cooling Fans stay running?<br /> Do I really need ball joints on my Trailblazer?<br /> How do I remove stuck Spark Plug Boots?<br /> How do I pass a Smog Test in California?<br /> Does my Ram Truck have a bad cam or bad oil filter? <br /> Does my Toyota Tacoma have bad Catalytic Convertors?</p>