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914World.com _ 914World Garage _ Overfilling the oil. Is this bad ?

Posted by: porsche913b_sp Mar 29 2013, 10:31 PM

On my 1.7, I remember hearing somewhere it was like 5 quarts , but after filing a entire gallon, the dipstick is way above the full mark, maybe around 1/2". Lesson learned, man I better check it for myself, pulled the Haynes manual and it is 3.5L (w/filter change) which is 3.7 quart. So i am .3 quart over. Is this bad ?? The engine was drained.

What is the general thought, drain the extra .3 quart or is it ok to leave it ?

Posted by: CG-914 Mar 29 2013, 10:41 PM

A lot of people fill in 4 quarts after the oil change to have enough oil for cornering so i would not worry about it at all!

Posted by: yeahmag Mar 30 2013, 09:42 AM

If you didn't fill your filter first that will soak up some extra oil too.

Posted by: porsche913b_sp Mar 30 2013, 09:43 AM

Cool thanks guys save me the hassle of draining it

Posted by: relentless Mar 30 2013, 01:28 PM

On engines where the oil filter mounts vertically (up) you should always fill it with oil before mounting. This way the engine will have full oil pressure ASAP.

Posted by: stugray Apr 20 2013, 04:09 PM

QUOTE
On engines where the oil filter mounts vertically (up) you should always fill it with oil before mounting


Actually with these engines I believe you have it backwards.

The oil pump pulls directly from the sump via the pickup.
It then BLOWS INTO the oil filter then the cooler , etc.

If you prefill the filter, then the pump has a HARDER time priming because it has to push the oil out of the filter with air.

Stu

Posted by: stugray Jun 28 2013, 05:14 PM

^ thought this would cause some controversy, but .......

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