The 1ZZ-FE like any other engine,needs regular Oil and Filter changes. Before commencing I warmed the engine up till normal operating temperature showed on the gauge. To change the oil on a seventh generation Celica you need to raise the car. On this occasion I was able to Drive the car up ramps as I had the bumper cover off to replace a fog light bulb. The angle of my heavy duty Rhino ramps would otherwise be too steep and foul the bumper. Once up,an underside cover needs to be removed a handful of pry pins and a couple of 10mm bolts removes it. To remove the drain plug I used a 14mm socket, a short extension and a socket wrench. I was carefully not to get burnt by the oil and avoided contact with it as much as possible,(the contaminants in used engine oil being known carcinogens). The oil seen draining,(right), is from around 4000 miles on a replacement used engine, One dose of Auto-Rx®, a replacement filter at 1000 miles, a Quart and a half of Marvel Mystery Oil® in the last 600 miles. The oil was very dirty and it hopefully took a lot of sludge and contaminants from the engine.
Once it had all drained out the drain bolt and the area where it seats on the sump were cleaned, a new nylon washer,(felpro), fitted and the bolt replaced. The old oil filter was removed and drained. A smear of fresh oil was applied to the replacement filter's gasket prior to it being screwed into place. The engine was refilled with 3.9 Quarts,(3.7 Liters) of good quality 5w-30 Oil.