The engine cleaning myth's

[rich318i]

Do fuel injector cleaners work like Redex and so on? and is it worth flushing the engine?

Had a little read and oil flushes are not really recommended but injector ones do clean the injectors out.

Anyone done any of the two before and what was the out come?

[smithysmith]

No and no. IMO.

Ultrasonic cleaning works for injectors though.

I would advise against a engine flush, just go for regular oil and filter changes.

[HairyScreech]

If you think it needs a bit of a de gunking then use a diesel spec oil for 1 oil change and see if it helps, the better diesel oils have a greater level of detergent in them.

[harry_p]

I wouldn't bother with an engine flush, but I have done two oil changes close together if I don't know a cars history as you'll still have quite a bit of the old oil sat all around the engine after draining.

A dose of injector cleaner may help, but I've never seen anything more than anecdotal evidence that they work. I certainly wouldn't be adding reflex at every fill up like they suggest on the bottle.

[rich318i]

Im running a M52B28. The engine is running sweet its done about 146K so may just go for the injectors as i like to get it remap soon too

The old rule if its not broken......

[Rtaylor2208]

Get injectortune on here to do the service on the injectors, I had mine done and it made a considerably difference in performance. The best £60 I spent.

[rich318i]

thinking off going down that ave

[retroboyo]

Easy answer is no. Complicated answer is no.

[billgatese30]

It would be interesting to see pre and post Redex flow results for some old injectors.

Perhaps, freshly removed with say 150k miles on them, then after 1 redex treatment, then say 10 tanks of fuel with redex in every tank, then versus proper ultrasonic cleaning.

Maybe something someone can do with injectortune perhaps as a good marketing ploy

[Jesus325iTouring]

I certainly wouldn't be adding reflex at every fill up like they suggest on the bottle.

...........imagines Harry dancing to the tunes of Duran Duran whilst filling up the M3

[harry_p]

Autocorrect strikes again

[Jesus325iTouring]

I had to comment, just sometimes you read something which makes you giggle like a 5 year old, that one did