Injector Cleaners - Worthwhile?

[E30Conman 0]

My 89 325i 5spd 'vert runs on BP 98 Ultimate and I wondering whether a dose of injector cleaner is worthwhile? (152 000kms). Whats the low down on these additives, worth the money? Are some better than others? Interested in feedback?

Cheers.

[huff3r 347]

I've used them occasionally but to be honest never noticed any difference in the way the car ran, or the fuel economy I achieved.

Not really sure if they actually do anything haha.

[kiwi535 538]

i used to chuck one in every now and then a few weeks before an oil change(so the stuff was gone before the new oil went in,)they are high in detergents

[Michael. 2313]

I think one would be better off removing the injectors and having them professionally cleaned.

[Neal 544]

Used STP on E30 & E36 , biggest difference noticed on E30 323i. Would gain around 25 - 30 km on a tank of gas. Stats based on 600,000 km of commuting with av speed of 52.4 kmh (Sad ah). Commute was 64 km per day in varying driving. 100kmh to crawl so mainly low rpm.

Bigger diff on unleaded petrol suggesting that the 95 octine had more crap in it compared to leaded. 98 seemed cleaner when that became available , didn't notice any diff running 98 after injector clean.

[Greg111 13]

No gain, no loss, won't hurt.

[kwhelan 241]

Subara upper engine cleaner is the bomb

google it plenty of very satisfied customers

My 89 325i 5spd 'vert runs on BP 98 Ultimate and I wondering whether a dose of injector cleaner is worthwhile? (152 000kms). Whats the low down on these additives, worth the money? Are some better than others? Interested in feedback?

Cheers.

[Greg111 13]

Subara upper engine cleaner is the bomb

google it plenty of very satisfied customers

Not ideal to clean injectors??? Goes in with the petrol via the petroleum tank.

[Lucan 196]

I think one would be better off removing the injectors and having them professionally cleaned.

Agreed

[E30Conman 0]

Cheers for all the inputs guys, seems the juries very much split on whether they do anything.

I'm just looking at options to put abit more lead in her pencil. She's mint and 100% NZ new original so am reluctant to consider major mods, though I'd consider minor reversible upgrades that stick close to original. Ideas?

Obvious go to is exhaust but she sounds real original sweet as she is.

Thnx.

[antil33t 90]

Get it remapped by Gavin @ Hi Velocity.

Maybe some "Waneys" headers.

Or just stick Konis in it.

[E30Conman 0]

Get it remapped by Gavin @ Hi Velocity.

Maybe some "Waneys" headers.

Or just stick Konis in it.

Hey Cheers for that, I look into it and pass on progress, results etc !!