THE 28999 MILES HAS FOUR GALLONS OF MAKEUP OIL(2 WITH THE OIL FILTER CHANGE) AND THE 37863 HAS 1 GALLON OF MAKEUP OIL. THIS IS ON A 11.1 LITER 60 SERIES DETROIT DIESEL ENGINE.THEY RECOMENDED CHANGING THE OIL BETWEEN 40,000 AND 45,000 MILES.code:
MILES 14245--------28999-------37863
ALUM----3------------4-----------3
CHROMIUM-5-----------3-----------0
COPPER---11----------10----------7
IRON-----20----------17----------19
LEAD-----3-----------2-----------11
TIN------0-----------3-----------1
SILICON--9-----------7-----------8
POTASIUM-16----------10----------0
SODIUM---6-----------70(ABNORM)--8
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TBN-------9.1--------8.3---------5.2
SOOT-----0.9--------1.4----------1.9
DO SOME OF THESE NUMBERS SEEM A LITTLE ERRATIC TO ANYONE? I'M QUESTIONING THE RELIABILITY OF THIS LAB.
THE SODIUM JUMP ON THE SECOND TEST WAS WAY HIGH AND THEN WAS NORMAL ON THE THIRD TEST. MAYBE I GOT SWEAT IN THE SAMPLE???? I WAS HOT WHEN I TOOK IT.
CHROMIUM AND COPPER WENT DOWN EVERY TIME. THERE WAS A LOT OF MAKE-UP OIL IN THE SECOND SAMPLE, BUT NOT THE THIRD. HOW DID THAT HAPPEN???
LEAD JUMPED UP THE THIRD TEST. MAYBE THE OLD OIL ISNT PROTECTING AS WELL???
ALL THE SAMPLES SHOWED ABNORMAL WATER,BUT THEY SAID THERE MACHINE ALWAYS SHOWS IT WITH DELVAC 1. IT HASNT USED ANY ANTIFREEZE AND GLYCOL WAS NEVER DETECTED IN ANY SAMPLE.
IS IT NORMAL FOR NUMBERS TO JUMP AROUND LIKE THIS???
THIS WAS MY FIRST FILL WITH SYNTHETIC.PREVIOUS POSTS SAID DUE TO CLEANING THE ENGINE IT WOULDNT LAST AS LONG AS NORMAL. I'M GOING TO GIVE IT ONE MORE TRY WITH SYNTHETIC BUT IF IT DOESNT LAST AT LEAST 60,000 MILES THEN ITS TOO EXPENSIVE.(11 GALLONS AT $21 A GALLON)
ANY COMMENTS OR QUESTIONS WELCOME.
[ June 19, 2003, 05:44 PM: Message edited by: BOBISTHEOILGUY ]