Quote Originally Posted by Gerrycan View Post
Do we know if catch cans are effective?
Mine is only at 4300 km so while there should be nothing there but we currently do a lot of short journeys and that is the worst thing for any engine.
Not terribly keen on chucking chemicals down the intake, goodness knows what they and the loosened material does to stuff downstream
The borescope sounds a good investment but until I get a job we are on a strict no frills budget
Catch Can - some swear by them, others say they do nothing. I bought mine as an experiment. I'll trial it for 12 months & if it appears to be doing nothing I'll move it on.

Petrol is a chemical and it's not much different to any of the other intake cleaners.

Injector / inlet cleaners are various combinations of light hydrocarbons (metho? Kero?), naptha, xylene and mineral turpentine.

If you don't like any of them jus do a water spray into the inlet of a running engine. It does help.

The chemicals / gunk isn't an issue if you do the clean just before you get a service done.

Borescope was cheap - <$25 but having been unemployed once myself, probably $25 better spent elsewhere.