Chuck 52 The best fuel system cleaner I have ever used is propane,most of my AD'S are on it straight. Now it takes some management cause if you run it out kind of inconvenient but you can save it with a 20 lb. cylinder. LPG is clean,no fuel pump,carbs are simple,you can have fuel at home,NEVER cold natured,oil stays like new,no sludge have used it for 40 years. all of my AD'S are on it,along with my 04injected GMC does both !
Last edited by fixite7; 11/24/2021 11:49 PM. Reason: more info