quote:You don't want to put Risoline, or any other solvent-type cleaner, in your engine. If you change your oil every 3000 miles, you're not going to have any sludge to worry about.
Originally posted by rick: Would I be ok If I were to use Castrol GTX as an eg Then every 3-4 oil changes use a bottle of Rislone engine cleaner for 1k miles. Would I still be ok from sludge build up. I'd change by oil every 2k Miles