Hello Toyota Forum, at Opel I know almost every part number by heart but from Toyota I have as much knowledge as from astrophysics. My wife drives a 1.0 with 69 hp from 2010 with currently something about 75,000 km. The engine seems to be relatively inconspicuous, at least you read little about it. We have the problem that he rattles and rattles at irregular intervals after starting. Sometimes not for days, then 2 or 3 times and then not for days. After a few Ki When it sounded particularly bad (or when I was driving with it myself, woman didn’t hear anything because quote: “The radio was on” I made an oil change with 0W30 (according to Liqui Moly oil sign). Before 5W30 was in. This brings us to the 1st problem: According to the Internet, 3.1 liters + 0.2 liters of oil filter capacity come in, but after 3 liters it was with the Max marking and out came only 2 liters. Of course too little but just at the Min marking. in which maybe Toyota at 60,000 km has not filled in too little, since I could not detect any oil consumption before, it only has to be checked with lammed. But what does Toyota say about oil content, oil quality and change interval? After that the engine ran a little quieter and more economical but the sporadic and irregular rattles still makes it. Is there anything else to consider with the engine? Must e.g. the valve play be checked? Any other vulnerabilities? Just exclude it now, because it has so little down and really gets a relatively sensitive oil change after 15,000 km (as I always pushed on it). Driving profile is rather city area but no short distances, everything so at least 15 km to 20 km per ride and lots of green wave. Greetings