GDI induction services

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Our shop now offers a valvoline direct injection cleaning service. I am curious what you guys think of that stuff and of di cleaning in general?
 
Unless you have one of the vehicles known to carbon up the valves (VW/Audi, some BMW's, etc.), it's not needed.

Listening to the snake oil salesmen my 1 GDI vehicle would have near 0 fuel economy, no power, and barely run at 98k from these deposits. Yet it runs like a top, has roughly the same fuel economy as new, and pulls like a scalded cat.
 
Originally Posted By: itguy08
Unless you have one of the vehicles known to carbon up the valves (VW/Audi, some BMW's, etc.), it's not needed.

Listening to the snake oil salesmen my 1 GDI vehicle would have near 0 fuel economy, no power, and barely run at 98k from these deposits. Yet it runs like a top, has roughly the same fuel economy as new, and pulls like a scalded cat.



add chevy 3.6 to your internet knowledge base IT guy.
 
How exactly does it work?

I mean if its using the fuel injectors how is it reaching the back of the valves or is it a multi part process?
 
It's 3 parts first part is induction through the intake second runs through the injectors and third goes in the tank.
 
I wonder if anything short of taking off the intake manifold and bead blasting would be worth the trouble.

The trend toward ever tighter requirements for internal combustion engines is going to bring even more challenging times in the near future.

These problems will be solved to some degree or other but some of that discovery will be put on vehicle owners while the manufacturers figure out how to solve these problems.

I would say that these halfway solutions should not be expected to solve the problems.
 
Originally Posted By: ram_man
It's 3 parts first part is induction through the intake second runs through the injectors and third goes in the tank.
this is the type of fuel system cleaning we offer at my job. I think it's called "ZOOM" made by. Run-right
 
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I think Ford specifically advises against this kind of cleaning for DI/turbo models as the dislodged deposits can damage the downstream turbocharger. Would seem to be a similar issue for any DI/turbo engine. Seems like a considerable risk for any shop...
 
I can imagine that carbon chunks smacking a turbine spinning at 80,000 rpm could do some damage.

On our Cummins 6.7's, the greater concern is carbon building in the turbo itself. Newer models have a flush port for cleaning the turbo by injecting a cleaning agent.
 
that is why you are supposed to clean each port individually with both valves closed, in other words, i would want to know detailed specifics on how this cleaning procedure is done. (ie moving the crank appropriately)
 
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Originally Posted By: cptbarkey
Originally Posted By: itguy08
Unless you have one of the vehicles known to carbon up the valves (VW/Audi, some BMW's, etc.), it's not needed.

Listening to the snake oil salesmen my 1 GDI vehicle would have near 0 fuel economy, no power, and barely run at 98k from these deposits. Yet it runs like a top, has roughly the same fuel economy as new, and pulls like a scalded cat.



add chevy 3.6 to your internet knowledge base IT guy.


For what? Trouble prone or trouble free engines? Don't hear too many issues with them.
 
Originally Posted By: itguy08
Originally Posted By: cptbarkey
Originally Posted By: itguy08
Unless you have one of the vehicles known to carbon up the valves (VW/Audi, some BMW's, etc.), it's not needed.

Listening to the snake oil salesmen my 1 GDI vehicle would have near 0 fuel economy, no power, and barely run at 98k from these deposits. Yet it runs like a top, has roughly the same fuel economy as new, and pulls like a scalded cat.



add chevy 3.6 to your internet knowledge base IT guy.


For what? Trouble prone or trouble free engines? Don't hear too many issues with them.


No trouble with mine!
 
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