# Oil... how does it work? \[split\]

**URL:** <https://forums.speedlife.net/t/oil-how-does-it-work-split/262189>\
**Category:** Shift518 Off Topic\
**Created:** [January 6, 2012, 11:40pm UTC](https://forums.speedlife.net/t/oil-how-does-it-work-split/262189 "2012-01-06T23:40:40Z")\
**Posts on this page:** 1\
**Showing post:** 179

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**Author:** ![Vovchandr](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/vovchandr/32/6275_2.png) [@Vovchandr](https://forums.speedlife.net/u/Vovchandr)\
**Post date:** [January 11, 2012, 3:54pm UTC](https://forums.speedlife.net/t/oil-how-does-it-work-split/262189/179 "2012-01-11T15:54:48Z")

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> [@wtb: ford 5.0 mustang tps 86-93](https://forums.speedlife.net/t/wtb-ford-5-0-mustang-tps-86-93/47375/4):
>
> Thinner for cold engine start up so it can flow to vital components of your engine better, but retain a specified weight when operating temperature (210\*F) is reached so excessive engine wear does not occur.

Thinner than what?

If oil is made thinner for start up, it means it thickens up later no?

Or does it get even thinner once started?

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