You have a blown head gasket or cracked head. STOPdriving this vehicle immediately or you will destroy the engine. You must have this repaired.
Try changing the spark plugs
No it does not give you better gas mileage, all it does is helps with any loss of horse power and white smoke coming from the tailpipe due to burning antifreeze.
There could be many problems related to smelling gas and seeing white smoke from your tailpipe. Some suggestions would be the head gasket. If the smoke has a blue tint to it, it may be oil related. If your car has a turbo, it may be the turbo needing to be replaced. To be sure, you can have a mechanic do a diagnostic on it.
if there is white smoke ur vehicle is either burning oil or it is moisture in the gas chamber
This engine is running extremely rich. This can be caused by many things. Have it repaired ASAP. Serious engine damage will occur if you continue to drive.
If you are talking about gas treatment poured in the gas tank, and you only poured in one can, the answer is no. White smoke from the tail-pipe is normally an indication of a blown head gasket. Stop driving the car until you have this looked at.
Yes, a faulty EGR (Exhaust Gas Recirculation) valve can contribute to white smoke from the tailpipe on a gas engine during initial startup. If the EGR valve is stuck open, it can allow excessive amounts of exhaust gases to enter the intake, which may lead to incomplete combustion and the production of white smoke. However, white smoke can also be a sign of coolant entering the combustion chamber, so it's essential to diagnose the issue thoroughly to rule out other potential causes.
If white smoke is coming out of the tailpipe when the engine is up to operating temperature it sounds like engine coolant is getting into an engine cylinder from a bad head gasket , a warped or cracked head , or some other problem
Because it contains more unburned fuels and less carbon contents
White or bluish/white smoke coming from the tailpipe is oil. Black smoke is unburnt gas. So if you notice a drop in the level of oil when you check it with the dipstick and have that: the white or bluish smoke, you are burning oil. Could be piston rings, especially on a high mileage engine, valve guide seals, (that will cause a lot of smoke upon start up, the oil has leaked past the valve seals in to the combustion chamber while sitting) but the basic answer to your question is the smoke
NO!! White smoke indicates the burning of oil. The law says, "ANY smoke coming from the engine during any part of the test is grounds for failure." I've been an Emissions guy in Denver for 23 years. White smoke is oil. Black is gas (too rich). Black smoke can get pricey. White smoke is always pricey!!
When any vehicle has black smoke coming from the tail pipe it normally means it is not burning gas properly. and it could be burning oil check your oil if it is black you are burning oil. and you probably have an oil leak Black smoke means that you're getting too much fuel to the cylinders. You may have a bad injector. If you're burning oil, then the smoke would be white (indicating worn rings or valve guides).