Have you ever had "check oil" light issue with your craftsman GT? My engine Is a briggs 18 I assume its a 422XXX (the plate with model # is missing). So according to manual I put in 48 oz SAE30 (no filter on engine). Soil oil light starts coming on. I check stick it shows "full" but I add 5 more oz. Then oil is burning in muffler, so I drain and put in 48 new oz of 10w30 synthetic. Oil light still comes on. Stick shows "full"
Glad to have you for a friend,got to love those old Sears Tractors.I have a 1966 Suburban10/12 house added the old engine was gone.Wheels were rusted off.All bent up and look at it now.I been told it one of the nicest Sears many have seen.I all so have a 1968 Suburban12 and a 1973 Sears ST 10. I have 1988 cub IH 1210 Hydro that now has 2004 14Hp on it has a 50 deck and its my mower.