gigelus2k3 wrote:
> Hello,
>
> I was chatting with a coworker who told me that all cars need cleaning
> of the injectors every 30 to 60k. Heck, I have a 98 Civic and a 2000
> Civic and, to me, they run perfectly well with about 100k miles on
> them.
>
> Isn't it that if anything goes wrong with the engine (including
> clogged injectors), then the mileage will drop? Both cars exhibited a
> mileage increase from day zero to up to about 3 years of use, then
> stabilized to about 34-36mpg for 50/50 city/highway driving.
>
> So, is it true that sooner or later the servicing will have to include
> injector cleaning or is my mate bs-ing?
>
> Thanks
>
not b.s. yes, cleaning can help problems like leaky injectors and to
some degree, excess carbon in egr systems.

detergent content varies by gasoline brand. stick to good brands,
preferably "tier one".

you can also run cleaner through the system yourself for minimal cost.
avoid the "flush" service sold by places like monkey lube.