Breaking Down the Basics Hot vs. Cold Engine Oil Checks

I think warm, when the oil has had a chance to drain back (10-15 minutes), & sitting on level ground gives the best reading. Overnight cold does ... The oil cooler has a thermostat that opens and releases extra oil from the oil cooler making the dipstick reading correct when hot. My general ... Since the engine was "hot" at the start of the oil change, now we run the engine a few minutes- we are supposed to check the oil with the engine ... Wether it's hot or cold, if it's in between the hash marks it's good. Engine oil is checked with engine off, tranny oil is checked with ... Check oil after its been standing over night ,or when the engine is stone cold . And all the oil as drained down into the sump. Most car manufacturers recommend checking the engine oil level once the car has cooled down as this is not only safer, but it also allows the oil to settle ... Do you then wait until the engine is cold before topping it up. Also the engine will expand as well as the oil when its hot making the sump ... 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 ... This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. We should add that cold-weather drivers face the same problem in reverse. Oil that's been standing in freezing temperatures for a while can be thicker than ...