For 1990-2009 cars

Oil is applied under pressure to the crankshaft, connecting rods, camshaft bearing surfaces and valve lash adjusters. All other moving parts are lubricated by gravity flow or splash. Oil is sucked by a pipe out of the oil pan. The oil pump is driven by the crankshaft. The oil pump body is installed at the front side of the engine block. The pressurized oil from the pump passes through the oil filter. The oil filter is located on the intake side of the engine block. The oil filter is housed in a casting that is flange connected on the engine block. The oil filter is a disposable cartridge type. A by-pass valve allows continuous oil flow in case the oil filter should become restricted. Oil then enters the gallery where it is distributed to the crankshaft and camshafts. The connecting rod bearings are oiled by constant oil flow passages through the crankshaft connecting and the main journals to the rod journals. The pressurized oil passes through the cylinder head restrictor office into the cylinder head and then into each camshaft feed gallery. Cast passages feed each hydraulic element adjuster and each camshaft bearing surface. An engine oil pressure switch or sensor is installed at the oil filter adapter. The Turbocharger is lubricated by oil by a feed pipe and drain by a return pipe. Oil returns to the oil pan through cast passages in the engine block.