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Originally Posted by blue2000s
The 2003 owners manual still says to not allow the oil level to drop below the min mark or rise above the max mark on the dipstick.
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Well, that seems to be an incongruity between the manual, the TSB and the PET which does
NOT denote a change to the dipstick PN# (which Porscher does in every other known upgrade or supercession) through all the model years that use dipsticks... it's the same dipstick (PN# 996.107.014.02)... same calibrations.
I would suspect that in the face of this evidence, that the owners manual is incorrect.
It says the exact same thing in my '99 owners manual:
"The Oil level must in no case fall below the minimum or exceed the maximum oil level on the dipstick..." Now we know this has to be incorrect in my manual (at least) due to the TSB revision. And, if they haven't recalibrated the dipstick in subsequent years (and there's NO indication that they have), it must be incorrect in later manuals as well.
I suspect that in subsequent owners manuals, it's just a carryover from previous ones. They do not re-write the entire manual every year, probably only revise it where applicable. It's easy to see this as an ovesight.
No matter though since that notation in the manual will keep you in the OK range. The difference between the MIN/MAX marks represents 1.6 Qts., so there's plenty of cushion there.
But it only stands to reason that if you add an additional amount of oil (as directed in the TSB) that the level will show higher on the dipstick, unless the dipstick has been recalibrated to reflect the added oil, which it apparently has not.
I guess the point is to not obsess about keeping it FULL because of the risk of overfilling, just aim for the upper end of the OK range.
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