I am planning a trip from NC to IL. It will be about 1300 miles round trip. I have a "98 Buick which turned 200k miles last month. A rental car for the week will cost $230. I have rental insurance through my credit card. I have been worried about my oil pressure gauge bouncing lately. What are your opinions about renting vs. taking my car. I was going to stop by the mechanic to check the light. I think it is more of a peace of mind decision. Thanks!