mazdatweaker
+1y
. . .
The oil light comes on when the pressure drops below 3psi.
Someone told me:
The Oil Level Indicator Gauge (dipstick) is there to tell you when to add oil.
The Oil Light is there to tell you when to buy a motor.
Someone indicated that perhaps you have lost compression.
Without oil to lubricate the rings, 2500 degree combustion temperature plus friction is enough to cause them to get stuck in the piston lands. So they don't seal against the cylinder wall anymore.
Do a compression test.
Even if this is not a major issue, there is a really good chance that because the rods and mains were running without oil, they have been wiped out, creating excessive clearance on the crankshaft. Friction on those parts melts the lead bearing lining. If you pull the pan and check the crank journals, you may not have taken out the crank shaft.
So maybe you have a rebuild-able core right now.