# Too Much Engine Oil

**URL:** <https://community.cartalk.com/t/too-much-engine-oil/58503>\
**Category:** Maintenance/Repairs\
**Tags:** oil\
**Created:** [December 10, 2010, 5:55am UTC](https://community.cartalk.com/t/too-much-engine-oil/58503 "2010-12-10T05:55:32Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![NoPing](https://avatars.discourse-cdn.com/v4/letter/n/dfb087/32.png) [@NoPing](https://community.cartalk.com/u/NoPing)\
**Post date:** [December 10, 2010, 5:55am UTC](https://community.cartalk.com/t/too-much-engine-oil/58503/1 "2010-12-10T05:55:32Z")

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Toyota Corolla 1989, 205,000 miles.  
  
 Good regular maintenance.  
  
 Recent oil change seems to have added about 1 pint over Full.  
  
 Is this enough to expect damage?  
  
 What sort of damage, if any?

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**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/48514_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [December 10, 2010, 6:23am UTC](https://community.cartalk.com/t/too-much-engine-oil/58503/2 "2010-12-10T06:23:07Z")

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A one pint overfill will not cause any damage to your engine.

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**Author:** ![oblivion](https://avatars.discourse-cdn.com/v4/letter/o/3ab097/32.png) [@oblivion](https://community.cartalk.com/u/oblivion)\
**Post date:** [December 10, 2010, 11:53am UTC](https://community.cartalk.com/t/too-much-engine-oil/58503/3 "2010-12-10T11:53:03Z")

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One pint won’t hurt. Many people even intentionally overfill their engines by this much for the added protection of a little extra oil volume in the crankcase. I wouldn’t go past that though.

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**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\
**Post date:** [December 10, 2010, 5:13pm UTC](https://community.cartalk.com/t/too-much-engine-oil/58503/4 "2010-12-10T17:13:51Z")

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One pint will not hurt the engine at all. It really takes a few quarts to get the oil level high enough for the crankshaft to start churning the oil, which is the only danger that overfilling poses.

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**Author:** ![waterboy](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/waterboy/32/764_2.png) [@waterboy](https://community.cartalk.com/u/waterboy)\
**Post date:** [December 10, 2010, 11:17pm UTC](https://community.cartalk.com/t/too-much-engine-oil/58503/5 "2010-12-10T23:17:04Z")

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This reminds me of a recent discussion where an assumed bad backflow preventer in the oil filter was causing high oil levels as far as dipstick readings. Was it a toyota filter?