My 91 Honda Civic is burning oil. the mechanic said it would run another 60-80,000 miles if I kept an eye on the oil. Now everytime I drive it, it jumps as though when you're going to slow for the gear your in, but it does this even when it's in the right gear. The "Check Engine" light keeps coming on. I'm afraid to drive it until I know what the problem is because I don't want to fry it. Please help.