Quote Originally Posted by geezer101 View Post
We don't have Seafoam over here in Oz and to be honest, it sounds gimmicky at best to me. Seems like all the stuff does is soak into the carbon build up, making it swell then letting compression and combustion do the rest. Spraying water into the intake of a running engine will do the same (without the smoke screen) or using a fuel additive and letting the treated fuel do the work. My suspicion of off-the-shelf engine oil flush being not much more than really over priced diesel fuel seems to be confirmed. I've used a mix of diesel and clean oil to flush a number of engines and it has silenced noisy hydraulics (gave wifeys' 2004 Elantra a flush and oil change and the HLA's in it were rattling like hell before the service).
Have you got a formula for that mixture Geez?