My 1988 Honda CRX burns oil after I drive “down” a particular hill that is about a 6 percent grade and that is about 5 miles long. There is a stoplight at the bottom of that long hill and my car always emits a big cloud of white smoke that smells like burned oil when I take off from that stoplight. I never get a cloud of smoke anywhere else; not when taking off on level ground, or when taking off going uphill, or even when taking off after driving down a “short” steep hill that is only maybe a half mile long. But whenever I drive down this one long steep grade and then stop at the bottom, I always get a huge cloud of smoke when I take off again. But the next stoplight after that is about 1 mile away with fairly level ground in between, and there’s no smoke at all when I take off at that light.
My car passed emissions testing 3 months ago. I do have to add oil between changes, but the engine has almost 235,000 miles on it.
Does anyone have a guess what I should do other than stop driving downhill?