Idiots...

When customers don't follow a shop's advice, it is often due to lack of trust. A co-worker (electrical engineer) asked me about his GM truck w/ LS engine. Because it was losing 1 gal of coolant per week, his regular mechanic whom he trusted said he needed a new engine for $5000, since it must be a bad head gasket (heard that before?). I asked if he had brown mousse in the radiator, if the mechanic had checked compression, etc. What about a heater hose or leaking heater core? He had been smelling coolant last winter. He bypassed the heater core as I suggested, no more coolant loss, and no more visiting that shop.