Ok, the worst JiffyLube story I've ever known. It happened to a guy at work and I saw the damage. We call it the all afternoon $500 oil change.
So one of our sales guys takes his car up the street to JiffyLube. His car happens to be a Saab Sonnet. For those not familiar, it's a 60's vintage sports coupe with a strange carbureted V4 engine, dual exhaust, and front wheel drive.
He goes to the JiffyLube and tells them right away, "Be careful, it's easy to confuse the transmission drain plug with the engine drain plug." Of course, as he watches they remove the trans plug first and dump the trans lube out. No problem right, now they have it, he'll just get the trans oil changed too.
They get the engine and trans drained and put the plugs back in, then let the car down. But now, they seem to be having trouble with one or both of the fill caps. They get progressively larger and larger tools, cuss a lot, beat on things, but finally get the caps off and the lubes refilled after about 1/2 hour. He's relieved but he shouldn't be yet.
They go to back the car out and it won't start. Uh oh, he's wondering why this is happening since it's never done this before. They grind on the starter, and grind, and grind, probably pumping the gas all the time. Remember, this car has a carb. Finally they run the battery down. No problem they have a booster charger. "This'll just take a few minutes..."
He suggests maybe they look under the hood while they charge the battery. They do, and after about 20 minutes discover a cracked ignition coil. Strange, it was fine when he brought it in. No problem again, while there is of course no Saab dealer within a 100 miles, there is a NAPA about 2 blocks away. "We'll get something that fits..."
Another hour goes by. Back from NAPA, new generic coil fitted, all is good right...
They start the car and both mufflers blow out. It seems the attempts to get the fill caps off with *large* tools had somehow "bumped" the ignition coil and cracked it. Then, the attempts to start the car with a cracked coil had filled the mufflers with raw fuel. Along with his new oil I'm sure...
He finally leaves after being there pretty much all afternoon with the wrong coil on his car, fuel diluted oil, and blown out mufflers. What's more, they expected him to pay for the oil change, plus the parts from NAPA and the labor to install them, and told him he's on his own for the mufflers.
Nice...