Hi,
I bought a 1990 Subaru Loyale 5-speed manual, many many miles on it. I don't believe it had been driven out of town for a long time. After I had driven it on the highway about 20 miles a big puff of white-blue smoke came out the tailpipe. But the engine kept going and I made it home okay, no more smoke. The next time I drove it, after about ten miles it started to hiccup but I made it home okay using the gears to keep up the revs. The next time, approximately the same place, at about 2000 rpm it died. Getting home I had to keep it above 3000-3500 rpm, and had another shorter incident of white-blue smoke. Now I find quite a lot of oil in the air filter box, oil level is at max, oil pressure is okay. Any ideas what is going on?