my car blows blue smoke in morning?

Other poster is correct, normally blue smoke = oil.

However from a cold diesel that might not be all that unusual since the fuel is sort of "oily".

does it actually use any oil?

You mention the car shakes when you start it. Does you live somewhere very cold? it might be normal or you might have a heater /glow plug that isn't working.

To be honest I've never worked on a Peugeot diesel. The last diesel I worked on was in a M54 5 ton 6x6 military truck and it was about 800 cubic inches with a turbocharger, It blew smoke all the time but didn't use oil and I only drove it in parades and military vehicle shows so I never bothered to figure out what it was

TONY R and boy boy are the only ones who have read your question properly.

There are two possibilities. First, if your valve guides are worn a little engine oil leaks down the valve stems overnight and when it burns as you start up it produces blue smoke which soon dissipates and doesn't reappear unless the engine's been stopped for a lengthy period. It's no vast problem and can often go on like that for years.

Secondly, you mention a shake when starting. That could be a defective glow plug. If that's the case the affected cylinder doesn't fire properly at first, and that can give rise to both a shake and some whitish smoke until it decides to join in.

(Worn pistons, piston rings or cylinder bores would give rise to blue smoke all the time, not just on cold starting.)

plug in the block warmer before starting it will save you money on fuel for the first hour that you drive it .diesels are an extremely high compression engine and when they are cold the metal pistons expand which causes a great deal of higher compressional resistance and at that time since diesels use such thick oil that gets thicker when cold have friction resistance .diesel fuel in order to burn efficiantly must be heated well before is injected basically what happens is the glow plugs heat the chambers near the injectors with hot air and once this allows the engine to start once started the engine runs and burns fuel with compression heat.try cycling your glow plugs several times before starting in other words let the light come on 2 or 3 times before cranking because it could stop some fuel from going out the exhaust in the morning.nothing is wrong with your vehicle .

Sounds like your piston rings are getting worn and a little oil seeps by them during the night, when you start it the next morning the oil burns off real quick and clears right up for the rest of the day. Make sure you check your oil level regularly as it could get low.

short but true if it only does it after car stood for a while and it is blue smoke its your valve stem oil seals. thats if you have not noticed a drop in power in normal use. oil sits on top of engine overtime if the seals are worn it gets down and sits ontop of pistons and then when you start the car runs rough and blue smoke only till it burns away not a big job about 100 at garage at most

One guy said "This is oil blowby" I wouldnt exactly use those words, however, but. I drove OTR for about a decade, and with about 1.3million miles of driving diesels, I can relate to what your describing.

I usually shut my rig off at night, unless it was freezing outside. And everytime after a few hundred thousand miles miles it would blow like a biatch till it warmed up that oil alittle.

Its nothing to be worried about. Thats a diesel for ya. And semi's are made tougher then cars or pickups so don't be sayin i ain't got nowhere near 300,000 miles:P

Yep, piston ring wear. Time for a rebuild.

NOPE.... Blue smoke is caused by direct metal to metal friction which especially in diesel engines is uncommon due to the fact the piston rings are lubed so well because of the amount of oil in diesel fuel. Black smoke is normal for these engines, blue smoke IS NOT.

This is oil blowby. I would just live with it. Might want to try a heavier cold rated oil, some people do that...but I don't know about diesels. It's not really something that any additive will fix because the piston rings are worn.

Correct if its cold its going to throw white smoke normal blue means you are burning fuel/oil your injectors are leaking until they heat up and seal out the oil/fuel check your oil levels if its getting too low more frequently be careful youll might get a runaway engine they love oil!!!!

You must live in a cold area. Diesel must be heated to perform at its optimum. Its just cold, i'd say. Then as the day heats up, you dont see it. If you live in an area thats cold overnight, I wouldnt worry about it. If you dont, take the other advice above.