Best Additive

[JAM]

What is the best additive, to help clean out injectors etc?

Any recommended?

[JamesR]

RedX is a commonly used one.

But i use the NOS stuff every few months or so.

[Mallyauto86]

stuff in a purple bottle from halfords cant member the name then do 1 tank with nos aditive . . . repeat cleaner . . . . then back to petrol works awsome

[Lew_C]

Millers stuff is good, proven with real tests not just bottle talk, will actually improve economy and performance.. might only be fractional though.

[Alexywhite]

Do any of these additives actually make any noticeable change in engine performance?

[raunchz]

Do any of these additives actually make any noticeable change in engine performance?

nope, not really tbh.

Nothing over a good service - depends on what condition the engine is in !

[Sparco_Tom]

most petrol stations and super unleaded fuels contain lots of cleaning agents

[AXracing]

What is the best additive, to help clean out injectors etc?

Any recommended?

Nothing. If they require cleaning take them out and get them cleaned. If they dont reuire cleaning just leave them be.

[aruffell]

I tend to try to use every time (if funds are right 1 out of 5) super unleaded, namely shell v-power or bp ultimate. Just seems that my car runs smoother, less lumpy idle etc...

Andy