This week on Car Talk, Darlene's bumpy road-trip prompts Ray to remember his explosive lesson about the dangers of over-inflated tires. Elsewhere, Cynthia hopes Tom and Ray can settle her brothers' tug-of-war over a vintage Camaro, but it's more likely they'll just add a Magliozzi family feud to the mix. Also, Bill's steering wheel is re-enacting "Ghostbusters" by oozing an odd substance; Marsha's wondering if adding oil to her coolant is the end of the world, or at least the end of her Previa; and on Stump the Chumps, we find out if marriage cured Ellen's fiance of his high-performance add-on addiction. All this, plus the return of the Puzzler, and lots more, this week on Car Talk.