Before my engine rebuild mine drank the stuff, but didn't smoke noticeably, but as has been said these engines do like to use oil. It'd go Max-Min on the dipstick in 200 miles.

My last car was a Granada Cosworth, only had it 6 months, but in that time I never had to top up the oil, on a 100,000 mile engine, fucking unbelievable, it just wouldn't use any oil. But the Cossie YB engine is another thing entirely.