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#1
02-26-2011, 12:46 PM
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Dipstick Discrepancy!
So while I am at school, my car (SD) sits for about a week at a time. I usually drive it on the weekends and what not. Before every trip I check the oil. Today I checked it and when I first pulled it out there was nothing on the stick! There was no huge puddle under it and I had full oil pressure when I parked it. So I checked it again. The next 3 times I checked it this morning it read right around just above the minimum mark, so I added a quart.
This isn't the first time this has happened though. Just wondering what causes this and if is normal or is there anything I can do about it?
__________________
1981 300 SD 213k miles "Stock for now" 1999 Super Duty 7.3L 113k miles 1981 300 SD 180k miles "Heavily modified" SOLD 
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#2
02-26-2011, 01:05 PM
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oil expands as it gets warmer, I'd assume that it's just under the Dipstick. though, it begs the question, where does the oil go? how much does your car use between changes?
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hum..... 1987 300TD 311,000M Stolen. Presumed destroyed
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#3
02-26-2011, 01:38 PM
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The dipstick tube goes down to almost touching the bottom of the oil pan. The top of the dipstick has an o-ring to seal it to the top of the tube. Next time, pull the dipstick up enough to release the seal at the top of the tube and wait a short while for the oil level in the tube to equalize with the oil level in the sump. Now take your reading.
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Greg 2012 S350 BlueTEC 4Matic 2007 ML 320 CDI 2007 Leisure Travel Serenity 2006 Sprinter 432k 2005 E320 CDI 1998 SLK230 (teal) 1998 SLK230 (silver) 1996 E300D 99k, 30k on WVO Previous: 1983 240D, on WVO 1982 300D, on WVO 1983 300CD, on WVO 1986 300SDL 237k, 25k on WVO (Deerslayer) 1991 350SDL 249k, 56k on WVO - Retired to a car spa in Phoenix 1983 380 SEC w/603 diesel, 8k on WVO 1996 E300D 351k, 177k on WVO
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#4
02-26-2011, 03:20 PM
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Quote:
__________________
1981 300 SD 213k miles "Stock for now" 1999 Super Duty 7.3L 113k miles 1981 300 SD 180k miles "Heavily modified" SOLD
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#5
02-26-2011, 03:32 PM
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Sitting for a week and checking before starting should result in a false "overfill" reading as the oil normally up in the head would have all drained to the pan while sitting. Oil should always be checked at operating temp, within minutes of shutdown.
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Terry Allison N. Calif. & Boca Chica, Panama 09' E320 Bluetec 77k (USA) 09' Hyundai Santa Fe Diesel 48k (S.A.)
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#6
02-26-2011, 06:45 PM
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I think the answer to this and many other questions is in your signature ~ "heavily modified" !?!?
__________________
Grumpy Old Diesel Owners Club group I no longer question authority, I annoy authority. More effect, less effort....  1967 230-6 auto parts car. rust bucket. 1980 300D now parts car 800k miles 1984 300D 500k miles  1987 250td 160k miles English import  2001 jeep turbo diesel 130k miles  1998 jeep tdi ~ followed me home. Needs a turbo. 1968 Ford F750 truck. 6-354 diesel conversion. Other toys ~J.D.,Cat & GM ~ mainly earth moving
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#7
02-26-2011, 06:47 PM
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Quote:
What do you mean?
__________________
1981 300 SD 213k miles "Stock for now" 1999 Super Duty 7.3L 113k miles 1981 300 SD 180k miles "Heavily modified" SOLD
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