# Vehicle Rarely Gets Fully Warmed Up. How Often for Oil Changes?

**URL:** <https://community.cartalk.com/t/vehicle-rarely-gets-fully-warmed-up-how-often-for-oil-changes/178012>\
**Category:** Maintenance/Repairs\
**Tags:** rav4, toyota\
**Created:** [July 13, 2021, 1:14am UTC](https://community.cartalk.com/t/vehicle-rarely-gets-fully-warmed-up-how-often-for-oil-changes/178012 "2021-07-13T01:14:32Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [July 15, 2021, 12:42am UTC](https://community.cartalk.com/t/vehicle-rarely-gets-fully-warmed-up-how-often-for-oil-changes/178012/21 "2021-07-15T00:42:36Z")

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Shouldn’t you be asking the engineers at Toyota?

Tester

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**Author:** ![JoeMario](https://avatars.discourse-cdn.com/v4/letter/j/3bc359/32.png) [@JoeMario](https://community.cartalk.com/u/JoeMario)\
**Post date:** [July 15, 2021, 12:17pm UTC](https://community.cartalk.com/t/vehicle-rarely-gets-fully-warmed-up-how-often-for-oil-changes/178012/22 "2021-07-15T12:17:40Z")

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> [@kcac\_1\_157641](#):
>
> Does operating an engine in a cold climate where the engine is not run long enough to get up to operating temperature lead to engine oil sludge?

Hi Kcac:  
Your above statement is “true”, but it all depends on the definition of “long enough”.

Between Toyota’s maintenance schedule indicating 5K/6months is sufficient, and the fact that millions of Toyota vehicles that followed that schedule were fine, you should be OK.

If you’re worried, you could send your oil out for an analysis.

[Previous page](https://community.cartalk.com/t/vehicle-rarely-gets-fully-warmed-up-how-often-for-oil-changes/178012.md?page=1)