Using Techron concentrate total system cleaner, anyone?

[ALEV8]

That's the next move. Seemed really easy if one had the gauges. Just screw on there at the rail...check at 5-10 min intervals!

Harbor Freight sells a quite competent fuel-pressure kit for around $35. The investment is only one time, and the kit can be used many times. It will be WAY less then having a mechanic do the test.

You're speaking my language here.......

[1schoir]

Thanks, JFP. Excellent, detailed information as usual!

Regards, Maurice.

[JFP in PA]

Any time, Maurice.

[wvicary]

The Cayenne also doesn't have a cold start injector. Do you hear the fuel pumps prime when you open the drivers door?

[Luke T]

Does the additive remove carbon deposits from the engine? Is it safe on the Turbo engine? I read that it kills the CATS...

[JFP in PA]

26 minutes ago, Luke T said:

Does the additive remove carbon deposits from the engine? Is it safe on the Turbo engine? I read that it kills the CATS...

 

  For decades, Porsche has recommended running a dose of Techron in their cars for this exact purpose.  We have used it in the shop literally since we opened, it does not harm cats.

[Luke T]

Does it ruin the CATS as i heard all te carbon gets blown through the exhaust? Do i need to do it before an oil change? 1 20 oz bottle per tank?

[JFP in PA]

3 hours ago, Luke T said:

Does it ruin the CATS as i heard all te carbon gets blown through the exhaust? Do i need to do it before an oil change? 1 20 oz bottle per tank?

 

As mentioned multiple times previously, Techron does not cause any problems.  For years, it was the only fuel additive Porsche recommended for keeping the fuel system clean and up to snuff.  It is also the only fuel system cleaner that is commonly used as an additive in first line gasoline.

 

Techron will remove carbon, and can result in finding a lot of carbon in the oil when used on cars that have not been properly maintained for years, which is why many people use it just before chainging oil.  If the system is in good shape, that is not normally necessary.

 

And Techron has no adverse effect on the cats, never has, never will.

[Turboflyer]

This was at about 110K. Chevron and textron before oil change and some at radom. I also use lucas oil treatment religiously.