Holy Smokin Dipstick Batman!

Messages
1,856
Location
PA
Its kind of funny, after running down the road for a good while really heating the oil up nicely (200 miles or so) - if I pull off the road immediately and pull the dipstick I end up with a lot of steam coming out the dipstick hole... Is this normal? Anyone else have this happen? It doesn't seem to cause any issues its just something I noticed one day [Cool]
 
Messages
485
Location
Montgomery, AL
Aren't we supposed to check the oil level on a cold engine?? contact oil lever checker's anonymous for further info. I believe a hot engine will "steam" from the oil filler cap as well.
 

Patman

Staff member
Messages
21,989
Location
Oakville, Ontario
I always check my oil when the engine is cold, or at least well cooled down. My dipstick handle, even though it's plastic, gets super hot! I have tried checking my oil level with just a 5min wait after a hot shutdown, then compared it to a reading from overnight, and the level is exactly the same for me either way.
 
Messages
282
Location
VA
My VW owners manual specifically says to check the oil when the car has been brought to full temp and after letting it sit for 3 minutes (so run until warm, then shut off, check 3 min later).
 
Messages
2,077
Location
Cordelia, CA
The main byproduct of combining HxCx(Gasoline) and O2(Oxygen) is CO2(Carbon Dioxide) and H2O(water)... [ September 09, 2002, 09:27 AM: Message edited by: VaderSS ]
 

Dominic

Thread starter
Messages
1,856
Location
PA
I wasn't attempting to verify the oil level, only the oil quality at temp - normally I don't fiddle with hot dipsticks unless I need to [Smile] However my owners manual does state to check the oil once the engine is fully warmed up [Smile] .
 
Messages
485
Location
Montgomery, AL
I definitely stand corrected, didn't know about the warmup recommendations. It makes sense, how else would you check the oil at fill up on a long trip? [Dummy!]
 
Messages
961
Location
Tacoma ,WA
I went on a 500 mile drive last week, at a gas stop check the oil and the dipstick was hotter then all get out...strangly enough I checked the tranny level too and the fluid was warm to the touch ...I would guess maybe 100 degrees. I though it would be a lot hotter traveling 75-80 for several hours. [Eek!]
 
Messages
16,441
Location
Silicon Valley
Yeah, it happens to my car too. After a 50 miles drive on freeway speed (80mph) and immediately check the oil after shut off, if the outside temp is low there tends to have steam comming out of the dip stick hole. It should be normal since in winter our breathing has steam too, i would imagine a hot engine who has H20 as byproduct will have steam come out. That's why they have PCV in engine so the will burn off those vapor instead of leaving them in the engine. At least you would rather the steam come out instead of having them in your engine right?
 
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