[ChasVS]

Originally Posted by Delta0311

Probably not unless your injectors are seriously gunked up from getting cheap gas. This is more or less are preventative measure.

[BEAR-AvHistory]

Originally Posted by 1chanc3

A question regarding this. I almost always fill up with Chevron 91 (which supposedly contains Techron). Is that enough for my injectors? Or should I buy a bottle anyways?

I'm starting to notice rough idling. 34k miles, though all the injectors were changed at 32k miles at the dealership, and spark plugs 1,4,5 were changed at the same time.

Thanks in advance.

I would try a few bottles in a few tank fulls' before looking to walnut blast. Main difference between the bottle & gas is the bottle is more concentrated.

That's not to say you are not a walnut blast candidate, its just a cheaper thing to try first.

[BMWUltimateDriv3r]

So I mostly fill up Shell/Exxon/Hess, do I still need this?

[biscut]

Originally Posted by maxipad96

I had a problem with my plugs after I ran this through the system. I wouldn't use it personally.

Better not use their gas then....same cleaner in their gas just lesser concentration.

[Three_thirty_I]

Well in South Africa Caltex Unleaded petrol includes Teckron by name, but I reckon all of the other local fuel companies either use it too or something equivalent which is where question follows - surely fuels over there also have various additives which primarily include some form of detergent along with other things. So theoretically as long as you are running a premium fuel which includes Techron or similar detergent you are already good, but a tank with added injector cleaner every now and again can't hurt. But I think for carbon build-up and if it is enough that it affects performance, walnut blasting is your best bet.