Why is oil level higher after just turning off?

[chris watton]

I don't understand this, I would have thought that, because a lot of oil is still in the engine/pipework after use, the level would be lower! If checked when the engine's stone cold, the oil level in the sump is lower, I would have thought it should be the other way around, as all the oil has had chance to seep back into the dry sump! Why?

(Just had a mighty fine blast around the Mendips, roof down, always feel happier after a good drive! , but, as usual, no other TVRs around!!!!!!)

>> Edited by chris watton on Saturday 3rd September 17:41

[350matt]

Just like everything else, oil expands with heat, so the level in the sump rises with temperature plus it gets aerated which will also cause it to rise

Matt

>> Edited by 350matt on Sunday 4th September 16:10

[chris watton]

Thanks for that Mat , Simple when you're told!!!

[Podie]

With a dry sump system, you also get a surge when the engine stops.

[nervous]

so...wait... ive always thought i was supposed to check my oil level when the engine was hot hot hot. is this not accurate then?

[lundinoir]

nervous said:

so...wait... ive always thought i was supposed to check my oil level when the engine was hot hot hot. is this not accurate then?

That's what my Tamora book says to do and that's what the factory and dealer said to do. I always get a reading of well over the max. I always check twice cleaning the dip stick each time to make sure. My Tuscan never used any oil and its looking like the Tamora will be the same.