What Smog Doctor does - The Long List

  keywords Question Answer
A acceleration slow, stalling How can I restore the acceleration?
  • clean/restore compressions with vb35
  • clean/optimize the injection with vb26
  • clean/reopen the air intake with the vb45
  • clean/lighten the turbine in the exhaust with vb45
A additive Smog Doctor Which Smog Doctor products are additives ? Smog Doctor products are cleaners and not additives.
A additive results What is the difference between an additive and a cleaner ? An additive gives results only when still in the system, while the Smog Doctor cleaners give results lasting until the parts will get dirty again.
A air conditioner moisture How can I eliminate moisture and other deposits from the gas circuit of the air conditioner ? Inject 50 ml. of vb35 in the low pressure circuit, run the system for about 10 minutes at maximum cold, eliminate and replace all the refrigerant containing the dissolved deposits.
B bearings How can I clean the bearings ? Vb35 added to the oil, which is especially important for the bearings of the turbo charger.
B biodiesel Which Smog Doctor products are recommended for biodiesel ? vb26 and the vb35 (vb35 not for systems without delivery pump).
B black sludge How can I eliminate black sludge from the engine? With the right dosage of vb35 you can eliminate any quantity of black sludge from the engine.
B black smoke emissions How can I solve the problem of black smoke ? Normally the problems are caused by deposits, vb26 added to the fuel, vb35 added to the old oil and the vb45 sprayed inside the air intake will reduce significantly black smoke.
B bus Which are the recommended products and the dosages  ? Add to the diesel 900 ml. of vb26,  add to the old oil 900 ml.  vb35, repeat once a year or every 100.000 km.
C carburettor Which cleaner is recommended for a carburettor ? The fuel circuit: add vb26 to the gasoline and within 20 km. of driving you will notice the results
The air circuit: spray the vb45 on the throttle keeping the engine accelerated.
C Cetane Do any of the Smog Doctor products contain cetanes ? No, the improvements are obtained by cleaning the parts  and restoring their efficiency.
C cleaner Is it better to use an fuel additive or a cleaner ? An additive hides the problem with octanes or cetanes.
A cleaner eliminates the cause of the problem.
C converter catalytic How can I clean a catalytic converter ? Mounted: with the joint actions of the vb26 added to the fuel, the vb35 added to the old oil and the vb45 sprayed in the air intake and then just driving the vehicle. Mounted: atomize the vb45 directly in the converter dismounted, fill the converter with the vb35/water mixture
C costs Are the Smog Doctor products cost effective ? Even from low mileage engines the Smog Doctor treatments obtain results in terms of performance and fuel economy. In case of serious problems, frequently they manage to eliminate the cause and in all cases you should clean with Smog Doctor before repairing or replacing the damaged part. A saving in fuel and repairs will compensate the cost of the products and a much better engine performance will be the bonus.
C crust diesel injector glow plug With which product can I eliminate the crust around diesel injectors and glow plugs  ? The vb45 has been developed to dissolve the crust around diesel injectors and glow plugs.
C combustion chambers How can I clean the combustion chambers ? With the products vb26, vb35 and vb45, which do not burn easily and thus have more time to dissolve the deposits in the combustion chambers and furthermore to clean also the components of the exhaust.
D damage Are the Smog Doctor products safe to use ? The Smog Doctor treatments have been extensively tested and have been used now for decades by professional mechanics. If used according to the instructions they will only give benefits to the engine and to the driver. For any doubt just contact us.
D diesel injector crust How can I eliminate the crust around diesel injectors ? Spray the vb45 on the crust, wait, remove by hand and repeat.
D diesel - deposits Which Smog Doctor products are recommended for diesel ? For diesel the vb26 and the vb35 (except systems without delivery pump).
D diesel - water How can I eliminate water from the fuel tank and from the injection system ? Add the vb35 to the diesel fuel and drive normally.
D differential How can I clean the differential ? Add the vb35 to the oil, drive the vehicle for about 10 minutes and then replace oil and filter.
E egr - cooler How can I clean the cooler of the EGR-valve ? Mounted: with the joined actions of vb26 added to the fuel, the vb35 added to the old oil and of the vb45 sprayed in the air intake Dismounted or accessible: spray the vb45 inside the cooler.
E egr - valve How can I clean the EGR-valve ? Mounted: with the joined actions of the vb26 added to the fuel, of the vb35 added to the old oil and of the vb45 sprayed in the air intake and then just driving the vehicle Mounted: spray the vb45 directly in the egr-valve Dismounted or accessible: spray the vb45 directly on the deposits inside the valve.
E engine FSI Do I need a specific product for FSI engines ? With Smog Doctor no. Recommended are the vb26, the vb35 and the vb45 studied for all gasoline, diesel, lpg and methane engines.
E engine common rail Do I need a specific product for Common Rail engines? With Smog Doctor no.
F FAP additive Do any of the Smog Doctor products contain a FAP additive ? No, the FAP additive is meant to prevent clogging of the filter, but if it is too clogged, only cleaning with the vb45 will help in case the engine still runs and the vb35 in case the engine doesn’t run anymore.
F filter - CRT How can I clean the CRT-converter ? Fill the CRT with the mixture of 5% vb35 and 95% H2O (1 lt. vb35 and 19 lt. water), give 8 hours of time to dissolve and eliminate the deposits of soot and/or oil and then flush with water, never with high pressure cleaners !
F filter - FAP How can I clean the FAP filter ? The engine still runs: spray the vb45 directly in the filter and force a regeneration. The engine doesn’t run: fill the dismounted filter with the vb35 and water.
F filter - DPF How can I clean the DPF filter ? The engine still runs: spray the vb45 directly in the filter and force a regeneration. the engine doesn’t run: fill the dismounted filter with the vb35 and water.
F filter - oil Do I have to replace the oil filter after cleaning with the vb35 ? Yes. the filter will be cleaned also by the vb35 which will liquefy all the dirt, but the hard particles like metals will be still trapped by the filter.
F filter - water What happens to the water filter when I clean the system with the vb35 ? The filter will be cleaned and the water will be split into microscopic drops covered with lubricants and then taken to the combustion where they will be eliminated. However it is wise to replace the filter according the maintenance schedule.
F filter - lpg What happens to the lpg-filter when I clean the system with the vb35 ? The filter will be cleaned. If possible, look inside the filter before cleaning with the vb35 and look again after the cleaning. The filter will appear totally clean. However it is recommended to replace the filter according to the maintenance schedule.
F friction Which Smog Doctor products reduce friction? All Smog Doctor products except the vb45 contain a protecting lubricant which reduce friction.
G gaskets Are the Smog Doctor compatible with the seals and gaskets ? The vb26 and the vb35 are 100% compatible with the viton-seals and gaskets of the fuel injection systems of gasoline, diesel, lpg and methane. The vb35 is 100% compatible with the seals and gaskets of all oil systems.
G gasoline Which Smog Doctor products are recommended for gasoline ? For gasoline the vb26 and the vb35 (vb35 not for carburettors).
G gearbox How can I clean the oil circuit of a gearbox? Add the vb35 to the oil, drive the vehicle for about 10 minutes using all the gears and then replace oil and filter.
G glow plugs crust How can I eliminate the crust around the glow plugs ? The vb45 has been developed to dissolve the crust around diesel injectors and glow plugs.
H humidity With which product can I eliminate humidity ? The vb35 is a cleaner which also binds water to fuel and/or to oil, binds oil to the water in the cooling system and binds soot to water.
I injection gasoline With which product do I clean the injection ? With the vb26 you clean deeply, but you don’t eliminate water from the system. With the vb35 you keep the system clean and you bind water to the fuel and eliminate it through the combustion.
I injection diesel With which product do I clean the injection ? With the vb26 you clean deeply, but you don’t eliminate water from the system. With the vb35 you keep the system clean and you bind water to the fuel and eliminate it through the combustion.
I intercooler How can I clean the intercooler ? Given that we talk about dirt and not about liters of oil, you clean the intercooler by spraying the vb45 inside the air intake after the air mass meter.
K knocking engine What should I do in case of engine knocking ? Clean the combustion chambers with the vb26 added to the fuel and the vb45 sprayed in the air intake.
L lpg Which Smog Doctor products are recommended for lpg ? For lpg the vb35 cleaner
L lpg injection What should I do to maintain my lpg-injection system ? Clean with the vb35
L lpg reducer How can I clean the reducer of the lpg-injection system ? Inject the vb35 in the lpg-gas tank
M manifold intake How can I clean an air intake manifold ? Gasoline engine: spray the vb45 into the air duct with the vehicle in the workshop or spray vb45 into the air intake after the air mass meter driving the vehicle on the street. diesel engine: spray the vb45 into the air intake after the air mass meter driving the vehicle on the street.
M manifold variable How can I clean a variable air intake manifold? Gasoline and diesel engines: spray the vb45 into the air duct driving the vehicle on the street changing revs. frequently.
M methane vb35 Can I inject the vb35 into the methane gas tank ? We could reach the pressure of the methane gas, but we can’t mix a liquid cleaner with it. The vb35 mixes with any liquid, but the methane is normally a compressed gas.
M moped scooter Which products can I use on a moped or a scooter ? 150 ml. of the vb26 added to 5 liters of gasoline will restore a lot of performance. 300 ml. of the vb35 added to the old engine oil will restore even more performance.
N Nano technologies Do the Smog Doctor contain Nano particles ? No, but even better. the Smog Doctor products are “constructed” on molecular levels, much smaller and more effective.
O octanes Do the Smog Doctor products contain octanes ? No, the improvements are obtained by cleaning which make the parts efficient again.
O old-timer Which products are recommended for an old-timer ? Add to the fuel of any kind of engine the vb26. Add to the old oil the vb35, but not in case the piston rings are worn out and/or the cylinders are oval.
O oil consumption What can I do to reduce oil consumption ? Clean the piston rings with the vb35. In case the piston rings are worn-out or the cylinders are oval, cleaning of the engine lubricating system will increase the oil consumption and therefore cleaning is recommended only for engines which are dirty and not too worn.
P piston rings Is it always recommended to clean the piston rings ? If the cylinders didn’t get oval and the piston rings aren’t worn-out, it is always recommended to clean the lubricating system in order to optimize compressions and to prevent the oil getting into the combustion and the combustion gasses getting into the oil.
P power How can I restore the power of the engine ? Optimize/clean the injection with the vb26 added to the fuel, optimize/clean the compressions with the vb35 added to the engine oil and optimize the boost of the VGT-turbine with the vb45 sprayed in the air intake.
P power brakes ABS With which product can I clean the ABS brake system ? The vb35 eliminates deposits of old oil and of humidity.
P power steering With which product can I clean the Power Steering system The vb35 eliminates deposits of old oil and of humidity.
P pump fuel With which Smog Doctor product I clean the fuel pump ? With the vb26 or the vb35 or both together. The vb35 eliminates water from the gasoline- or diesel fuel system and dissolves deposits. The vb26 does not eliminate water, but is stronger on the deposits.
P pump oil With which Smog Doctor product can I clean the oil pump ? The vb35 cleans the oil pump of all circuits of lubricating or hydraulic oil.
Q quantity fuel What does “improve the quantity of the fuel” mean? By cleaning with Smog Doctor, the fuel pump and the injectors feed the right quantity of fuel.
Q quality injection What does “improve the quality of the injection” mean? By cleaning with Smog Doctor, the fuel is sprayed again correctly, improving the quality of the injection.
R radiator EGR How can I clean the cooler of the EGR valve ? Mounted: by means of the joined action of the vb26 added to the fuel, the vb35 added to the engine oil and the vb45 sprayed in the air intake. Dismounted or accessible: spray the vb45 directly inside.
R radiator oil With which product can I eliminate oil and grease from the cooling system ? By adding the vb35 to clean and hot water in the system and running the engine at higher revs. for maximum 10 minutes.
S sensor water What should I do when the water warning light is on ? Add the vb35 to the fuel and drive normally. The vb35 will split the water into microscopic drops covered with lubricants and then take them to the combustion where they will be eliminated.
S soot Which product is most effective on soot deposits ? The vb45 is recommended to eliminate directly the soot deposits inside the EGR-valve, the VGT-turbo charger, the particulate filter FAP or DPF and inside the converter. The joined actions of the vb26 added to the fuel, the vb35 added to the old oil and the vb45 sprayed inside the air intake will eliminate, surviving partially the combustion, the soot deposits inside the EGR-valve, the VGT-turbo charger, the particulate filter FAP or DPF and inside the converter.
S stalling engine How can I eliminate engine choking ? Optimize/clean the injection with the vb26 added to the fuel, optimize/clean the compressions and valve timing with the vb35 added to the engine oil and optimize the boost of the VGT-turbine with the vb45 sprayed in the air intake.
S starting engine What should I do if the engine does not start-up easily ? Gasoline and diesel engine: clean the pump and the injectors or carburetors with the vb26 added to the fuel. Lpg engines: clean the injection with the vb35 injected in the gas tank Methane engines: clean the injectors with the vb35 injected in the injector rail all engines:
S sensor oxygen lambda Can I spray the vb45 in the particulate filter through the fitting of the oxygen sensor ? Yes, the engine will still run at idle with the oxygen sensor dismounted.
S sensor temperature Can I spray the vb45 in the particulate filter through the fitting of the temperature sensor ? Yes, the engine will still run at idle with the temperature sensor dismounted.
S sensor particulate filter In which tube should I introduce the vb45 for the particulate cleaning ? In the tube which connects the sensor to the particulate filter at the engine side and by taking off both tubes (if more than is one present) that tube blowing more gasses with the engine running, is the engine-side one.
S speed How can I restore the maximum speed ? Clean/optimize the injection with the vb26 added to the fuel Clean/optimize the compressions with the vb35 added to the old engine oil Clean/optimize the boost of the turbo charger with the vb45 sprayed into the air intake.
T tank lpg Does the vb35 eliminate also rust ? No, it emulsifies water and eliminates and dissolves deposits of oil, fat, greases, bitumen, sludge, lacquers, gums, but does not eliminate rust.
T tank rust Do the Smog Doctor products eliminate rust from the fuel tank ? No, deposits deriving from fuel decaying will be dissolved and eliminated together with water deposits.
T torque How can I obtain the maximum torque from my engine ? Clean/optimize the injection with the vb26 added to the fuel Clean/optimize the compressions with the vb35 added to the old engine oil Clean/optimize the boost of the turbo charger with the vb45 sprayed into the air intake
T throttle body diesel How do I clean the throttle body of a diesel engine? Spray the vb45 into the air intake after the air mass meter while driving the vehicle on the street.
T throttle body gasoline How do I clean the throttle body of a gasoline engine? Spray the vb45 directly on the throttle keeping the engine accelerated or spray the vb45 into the air intake after the air mass meter while driving the vehicle on the street..
T truck What are the recommended dosages for a truck engine ? To the diesel fuel 900 ml. of the vb26, to the old oil 900 ml. of the vb35.
T tractor What are the recommended dosages for a tractor engine ? To the diesel fuel 900 ml. of the vb26, to the old oil 900 ml. of the vb35.
T turbo charger How can I clean the turbo charger ? Mounted: the fins of the turbine wheel in the intake are cleaned with the joined actions of the vb26 added to the fuel, of the vb35 added to the old oil and of the vb45 sprayed in the air intake which will clean also the compressor wheel in the intake. Dismounted or accessible: spray the vb45 directly inside the turbine.
V valve guides How can I clean the valve guides ? With the vb35 added to the old oil.
V valve differential pressure How do I recognize the tube in which to introduce the vb45 for the particulate filter cleaning ? Take off both, start the engine and the tube blowing off more gas is the right one (engine side).
V valve guides How can I clean the valve guides ? With the vb35 added to the old oil before the oil change.
V valve lifters hydraulic How can I eliminate the noise of the hydraulic valve lifters ? In case of dirt with the vb35 added to the old engine oil.
V valves seats stems How can I clean the seats and stems of the valves ? Intake valves of gasoline and diesel engines with the vb45 sprayed in the intake. Intake valves of direct injection gasoline engines with first the vb26 and then the vb45 sprayed in the intake. Outlet valves of gasoline and diesel engines with the vb26 added to the fuel and the vb45 sprayed in the intake
V valves outlet How can I clean the seats and stems of outlet valves ? Adding the vb26 to the gasoline or diesel fuel and spraying the vb45 in the air intake.
V variable valve timing How can I clean the variable valve timing system? If the VVT makes part of the lubricating system, add the vb35 to the old engine oil.
V VGT turbo How can I clean the turbine wheel of the turbo charger? Mounted: adding the vb26 to the gasoline or diesel fuel and spraying the vb45 in the air intake. Dismounted: spraying the vb45 directly on the deposits inside the turbo charger.
W water in fuel How can I eliminate the water/humidity from the gasoline, diesel or lpg fuel system Clean the gasoline, diesel or lpg fuel system with the vb35 which will bind the water to the fuel, then transported to and eliminated by the combustion. repeat every 15.000 km.
W water in oil How can I eliminate water from the oil system ? The vb35 added to the hydraulic oil or the engine lubricating oil dissolves all deposits and binds water to the oil which then is eliminated from the system by draining the oil/deposits/water mixture.

 

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