Carbon flush

[Wildman518]

I have an 07 328i with 85000 miles in it. Every time I take my car into the dealer they recommend a carbon flush. Should I do it? I don't have regular access to top tier gas either so I do what I can with adding techron when I can. Just want to bet your thoughts.

[Pyewacket69]

Exactly what is the procedure for the "carbon flush"?

If it's just some additive mixture added to a tank of fuel, it's not worth the time it took you to ask the question.

[wildcatcrazy]

If it's just some additive mixture added to a tank of fuel, it's not worth the time it took you to ask the question. yep!

[Nikojt]

Hopefully they mean a walnut blasting, but something tells me a flush means a fluid... Which wouldn't do much

[morzada]

OP has a 328, so walnut blasting shouldn't be required like for a 335. I wonder (would hope) that this is a terraclean type service.

[Wildman518]

It's terraclean or similar is what it sounds like. Yeah I wouldn't pay them for some fuel additive I can do that myself.

[Wildman518]

So is the terraclean worth it?

[Pyewacket69]

So is the terraclean worth it? Think about it...

If this procedure did as claimed, why wouldn't every manufacturer be recommending it?

My dealership's service dept. recommends several oil and lubrication additives, directly contradicting what BMW tells its customers. Who you gonna believe?

IMO, it's pretty much hype, much like running nitrogen in your tires. If you live on the performance edge, both might make at least a little sense. For the other 98%, I would defy them to drive 2 comparable vehicles (one with the procedure, one without), and guess which one had the procedure done with any accuracy.

It's just another process to separate you from your money. Of course, if you run a shop that has invested in the equipment to provide these services, how can they not be valuable? How can they not increase performance? That equipment ain't cheap, you know... Somebody's gotta pay for it... Why not you?

Of course, others may disagree.

Arrive at your own conclusions...

[morzada]

I think the terraclean (or any other decarbonizing treatment) can help with emissions, but I would be of the opinion that there wouldn't be much noticeable change in drive ability or performance.