Automotive Insight Hot or Cold Engine Oil Checks

A common question we hear is, “Can you check oil when the car is hot?” For most vehicles, you will want to wait until the car has cooled down before you check ... Checking it at operating temperature is the correct way to do it. Do what SD Rebel said with regard to going slowly and reading the lower side. You will have ... When you check your engine oil, you should consider the temperature of your vehicle. If you check the oil when your engine is hot, you should ... I found this: Oil expands 0.7% for every 5ºC that it heats up. So the difference between checking at 20ºC and 90ºC is 9.8%. In an engine with 4 ... The best time to check the oil in the engine is when the engine is cold or sitting there overnight. That is what I do. I still have my doubts though. Measure it stone cold and you have the oil at its thickest (so it sticks to the dipstick better without running and giving false readings), and ... When the engine is hot, the oil is thinner and less viscous so it runs down the dipstick faster. When the oil is cold, it's thick and much ... This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. Manufacturers used to recommend that you check your oil when the engine was cold, to give the oil a chance to settle in the oil pan. As ... Since the oil level is checked in the reservoir, checking cold may check low. Start the engine and run for a few minutes (Honda recommends about ...