(G) Smokey Engine?

My 85 16v appears to smoke on full throttle....its only done 53k so it shouldnt be engine wear also it only seems to do it at night....(you can only see the haze in the head lamps of other cars..) in the day its invisible also it doesn't do it when cold(cos thrashing cold cars is just plain dumb),only times i've seen it are motorway slip roads, noticed it when i first got it in september (at 43k) but it seemed to quit doing it after a couple of thrashes...but noticed it again last night....wondering what could be up....thinking mebbe its a bit overfueled or summat....

compression test should answer your question.,

Smoke usually means oil being burnt in the engine (Could be head gasket, piston rings, etc) then again it could just be nothing... but as vtec said, a compression test will eliminate both of these possibilities...

its over filled with oil ATM garage did it not me......also it wasn't at 43k....its only a recent thing (the oil was over filled when i had it serviced at 51k and its level hasn't dropped despite a rapid trip to donny and back.......so clueless! the oil level aint dropped despite 400 mies of caning...and it did it before the oil was over max.....so no ideas....thinking the mixture is off....