Lets Get That Car Air Conditioner Fixed

Can I use E30 in my 2007 Ford Mustang? Why does my fuel pressure drop on my 2006 Ram 5.7? Fixing a crank but no start 1994 Toyota Corolla? Replacing a trans temp sensor on a 2015 Escalade. Repairing ac on a 2000 F350 with poor cooling at home. 98 Chevy 2500 Misfire down road. 2011 Challenger my first car. What mods should we do first? 2005 Buick Lesabre fixing a intake manifold leak on the 3.8.