WHITE SMOKE COMING WHILE STARING 2.6 TRUBO DIESEL ENGINE 2003 SCORPIO

No need to mix oil and diesel since the diesel fuel itself provides lubrication to the internal fuel system parts. If you put oil in the gas tank, expect a huge amount of white smoke from the exhaust pipe until the fuel tank goes empty.

could be oil that has built up in the exhaust, check the engine oil and see if its up to the correct level top up if required and keep a check on it, it may also be useing to much fuel if its diesel as excess fuel burnt shows up as white smoke

You have fuel delivery issue, what they are will take a diesel engine service technician time to figure out.

You don't mention what that smell is reminiscent of?

You don't mention the colour of the "smoke" and you didn't say whether the engine is petrol or diesel?

You don't mention whether the road behaviour/performance is normal?

White smoke is almost always steam or in the case of a diesel it could be an unburned fuel mist, grey/black is excess fuel and blue or grey/blue is burning oil.

Some steam is fairly normal until the engine and exhaust system is hot but excessive amounts could be one symptom of head gasket trouble. If the engine is drinking coolant and sending it through the exhaust as steam it will sometimes smell spicy.

Burning oil smells a bit like burned eggs in the frying pan.

If the car hasn't ultra-low sulphur oil and fuel the catalytic converter will convert sulphur traces into hydrogen sulphide - the bad egg gas...

this case , you have to check turbo charger , when high RPM white smoke means lubricate oil goes to engine so give white smoke . on low rpm trubo close coming black smoke means no enough air gose to engine so this need to replace turbo . some type of turbo can be clean the wase gate ( which open with diafam beside turbo) make sure it's moving when accilerate. check vacum is ok . then clean wase gate > only some type have wings inside )if no replace turbo

to make sure if it;s trubo have probem just open Air hose from Air cooler . check if there is oil inside the oil coming from turb , the trubo will not lose power because oil will close the clearance of the main shaft of trubo. you can check engine by open oil filer cap if you have smoke come out . some time valve seal have Damage is if you have history of overheating only

White smoke is caused by engine coolant / antifreeze being processed in the combustion chamber(s) of the engine

Keep in mind that, on a cold day you may see what appears to be white smoke from the exhaust that will disappear after the vehicles engine has warmed up to it's normal operating temp.. This is a normal reaction called condensation... condensation is the result of a small amount of water/dew being drawn into the exhaust usually collecting in the muffler and/or the catalytic converter.

Hope helps.

When an engine expels black smoke it means that the piston rings are going and is consuming oil. And when the color of smoke is white the engine is consuming more fuel. Both are harmful. Black to the engine and pocket while white to the pocket. It seems that the injector need careful attention.
Cold engine does expel white smoke initially. When the temperature rises to normal working temperature the smoke stops. This is normal in your case. 5 to 10 minutes to warm up is normal for any diesel engine. But any thing more than that needs attention.

Symptom: White smoke or water vapor from the exhaust. You notice white smoke coming from the exhaust when you start your car. If it is cold out, this may be normal. If the smoke does not disappear after the car is warmed, you have a problem. Possible causes:

1. Transmission fluid may be entering the intake manifold through vacuum modulator.
   The Fix: Replace vacuum modulator
2. Cylinder head gasket(s) may be bad.
   The Fix: Replace cylinder head gasket(s).
3. Cylinder head(s) may be warped or cracked.
   The Fix: Resurface or replace cylinder heads. (Resurfacing is not a DIY job)
4. The engine block may be cracked.
   The Fix: Replace engine block.

Is this a small amount of white smoke or a lot of white smoke? If it is a lot of white smoke it could be a head gasket problem.

1. Do you have coolant in oil or vice versa?
2. Pull spark plugs and inspect for plugs wet with coolant.
3. Do a compression test and check for a low cylinder.

If you have issues in any of these points you will need to replace the head gaskets.