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[Marks DTM Calib]

Sounds very dodgy, most of the air pulled into the intake under normal running is Nitrogen anyway.

If its done any sort of decoke then you could achieve the same with a good run on decent fuel or even by using the small breather to suck water in at revs.

Just looked, its Hydrogen not Nitrogen so its simply increasing the cylinder temps, that's real easy to achieve by normal means 

Mr DTM. You have looked into the cylinders/head of the Silver Bullet's probably more times than you care to remember .  Any sign of enough carbon deposits to cause power loss, despite its 230k miles ?

Squeeky clean but, yours does get a good regular spank.

Short journeys would give some carbon build up

[TheBoy]

Squeeky clean but, yours does get a good regular spank.

I try occasionally .

Being more serious for a minute, on the same subject, with all other things being the same, would fart gas be more or less likely to coke it up (assuming tunnie borrowed it for short journeys), or indifferent.

[jacko]

they are all short journeys 15 min drives, not been out of town in the last 20 k

[Shackeng]

Magic Beans spring to mind 

If its raising cylinder temps (hydrogen is likely to do that but there will still need to be oxygen present!) then deposits will get burnt off, if your doing lots of short journeys then yes you may notice a difference.

But you could do the same by blanking the EGR and going for an hours drive.....

Or small quantities of water into the inlet is pretty good at steam cleaning the internals!

But it wont clean the inlet, may clean the cat out a bit with the raised exhaust temps (but again a good drive with EGR blanked will do the same)

IIRC Wg Cdr Vallis invented the Valjector to do exactly that about 50 years ago!

[X30XE]

Mr DTM. You have looked into the cylinders/head of the Silver Bullet's probably more times than you care to remember .  Any sign of enough carbon deposits to cause power loss, despite its 230k miles ?

Unless both the engine and the management system are utterly oppsed, there won't be any. The days of coked-up valves and heavy deposits on pistons are long gone.


Squirting snake oil into the inlet tract is the same old Wallet Overthickness Adjustment that it always was.

Unless you own a modern BMW that is 

[Jimbob]

Remember Decent fuel and occasional cleaners can be all that is required....
http://www.omegaowners.com/forum/index.php?topic=90485.0