HEY KRSI ANY 3.2 -3.5 FROM 98-2002 IS A CANDIDATE FOR OIL USAGE , AND NOT ALL OF THEM DO THAT ,IF THE OIL HAS BEEN CHANGED REGULARLY WITH A GOOD GRADE OF OIL AND THE CORRECT GRADE THOSE ENGS CAN GO A LONG WAY , BAD MAINTENANCE AND THEY ARE PRONE TO USE OIL , MINE STARTER AT 54000 USING ABOUT 1 QT IN 1000 MILES ,, THE NEWER DESIGN ENG ,THE PISTON WERE CHANGED IN THE 2002 MODEL YR ON BOTH ENGS ,THE RINGS ARE THE SAME , IT WAS NOT A RING PROBLEM IT WAS HE OIL DRAIN BACK HOLES IN THE PISTONS THEMSELVES THAT WOULD GET PLUGGED UP AND THEN THE OIL WOULD JUST PUSH RIGHT PAST THE RINGS INTO THE COMBUSTION CHAMBER . I HAVE THE REPLACEMENT ENG IN MINE NOW AND IT DOES NOT USE ONE DROP OF OIL BETWEEN OILS CHANGES , EVEN WHEN PULLING MY CAMPER TRAILER , JERRY

NOW THE CHANGE IN THE PISTONS ,,THERE ARE TWO OIL HOLES IN THE OIL RING LAND , THERE ARE NOW 4 ON EACH THRUST SIDE OF THE PISTON, THE OLD PISTONS COULD BE MODIFIED , BUT BY ALL MEANS INSTALL NEW RINGS , WHAT I WOULD DO BEFORE HAND . AND THIS WILL TAKE A LITTLE BIT OF TIME TO CLEAN THE ENG, SEAFOAM IS GOOD , I USE BG ENG FLUSH, BUT THE MAIN THING IS TO DO IT CORRECTLY, IN USING THE BG AND I WOULD IMAGINE THE SEAFOAM AS WELL, GET THE ENG TO NORMAL TEMP AND DRAIN THE OIL , NOW INSTALL THE SEAFOM OR THE BG FLUSH WITH A NEW FILTER JUST A CHEAP OIL FILTER AND A CHANGE OF 5W30 ENG OIL DOES NOT HAVE TO BE HI GRADE OIL , NOW RUN THE ENG FOR ABOUT 45 MINUTES, WATCH THE OIL PRESSURE DOES NOT START TO DROP, IF IT DOES SHUT IT DOWN IMMEDIATELY, USUALLY WILL NOT DO THIS ,IF THE ENG IS REALLY GUMMED UP IT COULD PLUG UP THE OIL PICKUP PIPE , NOW DRAIN THE OIL ,REPLACE THE FILTER AND DO IT AGAIN WITH A ANOTHER BG OR SEAFOAM TREATMENT , THIS TIME DRIVE IT 1/2 HR -45 MIN, NOW DRAIN , AND ANOTHER FILTER AND THIS TIME FILL WITH ROTELLA 5-40 DSL GRADE ENG OIL THIS IS A VERY HI DETERGENT OIL, AND WATCH THEN THE OIL USAGE , AND RUN THIS OIL ABOUT 3000 MILES AND KEEP ADDING IF NECESSARY TO KEEP THE LEVEL NORMAL,, OR AS SOON AS THE OIL STARTS TO TURN REAL BLACK , CHANGE IT AGAIN , THE QUICKER IT TURNS BLACK MEANS IT IS CLEANING THE ENG , IT MAY HOWEVER TAKE A COUPLE OF OIL CHANGES TO GET ALL THE DIRTY STUFF OUT AND THE CARBON AND VARNISH TO START DISSAPEARING , AND THEN USE THE 5W40 ROTELLA ALL THE TIME ,, IT,S AVAILABLE AT WALMART , I WOULD DO THIS BEFORE GOING INTO THE ENG AND SEE IF TI DOESNT HELP, ALLSO MAKE CERTAIN THAT THE PCV VLV IS WORKING OR JUST REPLACE IT .MAIN THING IS JUST DONT RUN LOW OF OIL ,, THE REASON YOU WANT TO USE FREASH ENG OIL WITH THE ENG FLUSH , YOU DONT WANT IT TRYING TO BREAK DOWN THE SLUDGE AND VARNISH IN THE ENG AND ALLSO WHAT IS ALLREADY IN THE OLD OIL , WITH FREASH OIL ALL IT CAN ATTACK IS THE BUILD UP ON THE INTERNALL PARTS .. JERRY