3
questions

Had fuel filter replaced and other stuff, like plugs. Could it be the wires? Not sure. It has 190,000 miles, well taken care of. Oil leaks below engine, cannot afford to have it fixed. Am disabled vet, this car has to last longer. Returning to show next Tuesday, any suggestions?
The missing usual around 55-60 mph. If I floor it, it does not miss. At times up small hill, and other times on level ground. not all the time. Filled with premium gas it seem to help.

The car set locked and now we cant get in to charge it.

does my caddy need a clutch fluid drain and replacement at 22k to make clutch more smooth even though it is 5 years old?