No injuries were reported in the mishap, which closed the left and center lanes on the northbound highway in Oakland just after 9:30 a.m.
New Jersey State Police responded, along with Oakland police, firefighters and hazardous cleanup units.
It was another in a series of crashes that has plagued that stretch of highway for years and brought pleas for relief from area residents who fear someone has to die before the situation is examined and rectified.
All northbound lanes were finally reopened around 1 p.m. The left and center southbound lanes remained closed for the spill cleanup before also reopening about 45 minutes later.
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