With oil splashing around inside an engine and with the addition of heat, engines build up a carbon deposit which can slow down/restrict the internal oil flow.There are many different ways to clean an engine but the best way is chemical cleaning. At Car-Aid we use a hot alkaline based bath to soak cast iron in for a specific period of time then use an air assisted water gun to blast away any residue and remaining dirt.

Alloys require their own specific cleaning process and for this we have a cold acid based bath, after soaking the parts we blast them off and then all parts from both tanks go into a giant dishwasher where these are once again cleaned, before they are passed inspection.