busted oil pressure sensor or oil level is already low - add more engine oil. try to fix the leak if the oil drips on a fast rate.
the previa holds 6.1 quarts of oil
I CHANGE MY OWN OIL IN MY 1991 PREVIA. 5W30 IS WHAT I HAVE USED FOR YEARS. PREVIA JUST PASSED THE 334,000 KM MARK
Bottom of the engine on the oil pan.
The oil pump may be changed when the oil level light begins to glow. Buy the oil pump from the eBay motors and it will be replaced.
If the question is in reference to engine oil then according to the user manual on my 95 previa it is 10w 30.
Where is the oil sensor on a Toyota tacoma 2003
SAE 10w30
under the front driver seat
5.8 quarts
underneathe the van by the oil filter.
approx 6.1lt