MMO is a "marvelous" product for all vehicles - especially older carbureted ones. I have used it in everything from a Citroen Traction Avant to a Maserati Khamsin. It internally lubricates carburetors, linkages, fuel delivery systems, etc., and is valuable when added to the oil supply (reduces carbon build up, deposits, etc.). I recently (just as I found a buyer

!) had a head gasket go in my Khamsin (a '75) and had to pull and strip the engine - the interior was absolutely pristine! I attribute that to its diet of MMO and Mobil1. I had planned to add a bit to my X-Fire prior to the last oil change to flush out any deposits, etc. - but, senility struck and I forgot about it until I had the oil drained - oh well, next time! Oh... It smells
great, too! As I recall it contains Oil of Wintergreen...
The link below illustrates one way this stuff can be used...
http://vwjudsonregister.tripod.com/oiler_page.htm