seafoam
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Joined: May 2006
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From: NW Ohio
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. At the very least, you can make it look like a nasty 300 foot burnout
Registered User
Joined: Dec 2007
Posts: 264
From: Burlingame, CA
Rep Power: 29
It will definitely do wonders IF the engine needs cleaning. 02 sensor and Catalytic may have trouble surviving if things are too dirty though. Make sure to clean the EGR with brake/carb cleaner too, after. Plugs and oil change are good after all.
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Joined: Nov 2010
Posts: 16
From: MD
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I have used this on my old SUV and noticed little improvement. It did light up the CEL everytime. I also worried about fouling the plugs. After running it for about 50 miles, I changed the oil and all plugs. No damage to O2 sensors. Didn't have the guts to try it on my BMW though.
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Joined: Dec 2006
Posts: 764
From: Bellevue WA
Rep Power: 72
The best way to keep your engine and various systems in your car in good shape is it drive it hard. Not abuse it, but drive it how it was meant to be driven. Do you see a section in your owners manual stating that a “decarbonization” procedure is necessary or recommended? Why not pour in some Zmax while you’re at it? I have taken engines apart before that owners babied, didn’t ever see the rev limiter, used premium fuel, tried different additives, etc, etc. The tops and skirts of the pistons were caked with thick sooty carbon, same for the valves. I have taken apart tracked engines, and daily driven owned by enthusiast and the engine is at least 2/3s cleaner.
Bottom line is that your engine will only last so long no matter what you pour in it, so do what the manufacturer suggests.
Everyone makes such a big deal about pistons, valves and carbon. The most wearable component , most susceptible to abuse and over all wear are the bottom end bearings and the wrist pins. Spun bearings or out of clearance bearings are number one points of failure I see on properly maintained cars. Improperly maintained or severe duty/modified engines are another story.
If you add too much too quickly, or do not keep the revs in the 2000-2500 rpm range it will not burn thoroughly enough and throw a check engine, or cel light.
Bottom line is that your engine will only last so long no matter what you pour in it, so do what the manufacturer suggests.
Everyone makes such a big deal about pistons, valves and carbon. The most wearable component , most susceptible to abuse and over all wear are the bottom end bearings and the wrist pins. Spun bearings or out of clearance bearings are number one points of failure I see on properly maintained cars. Improperly maintained or severe duty/modified engines are another story.
If you add too much too quickly, or do not keep the revs in the 2000-2500 rpm range it will not burn thoroughly enough and throw a check engine, or cel light.
Last edited by 19000rpm; Nov 6, 2010 at 03:31 AM.
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