I have a 2002 Subaru Outback, 111K miles, runs well, 5spd, 4 cylinder engine. A few months ago it began to have an odor after it had been driven for awhile, and was thoroughly warmed up. The smell is reminiscent of a certain controlled substance at its weaker moments, more like propane when stronger. Smells more when the weather is warm. The car doesn’t overheat, isn’t low on coolant, and uses a quart of oil about every 1500 miles, but doesn’t leak oil or smoke.
Anyone? Thanks!