# 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:** 50

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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 8, 2012, 11:45am UTC](https://forums.speedlife.net/t/oil-how-does-it-work-split/262189/50 "2012-01-08T11:45:34Z")

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> [@Bank suggestions?](https://forums.speedlife.net/t/bank-suggestions/47693/44):
>
> OMFG you are dumb. Seriously dude. Re-read Travis posts. You’re comparing numbers that aren’t comparable.
> 
> 5w-30 is an oil that has the viscosity of a 5 weight oil when it’s cold and has the viscosity of a 30 weight oil when its warm. WHAT YOU ARENT FUCKING SMART ENOUGH TO UNDERSTAND IS THIS: The 30 rating is at warm temperature, all it means is that it flows as a 30 weight oil would AT THAT FUCKING TEMPERATURE. This will always be much less thick and easier flowing than the 5w because that is rated COLD.
> 
> And if I’m wrong then how does reg SAE30 weight get easier to poor when its warm and it’s molasses when its cold??? PHYSICS YOU FUCKING PUTZ.

Are you seriously just trolling around? How are they not comparable?

> 5w-30 is an oil that has the viscosity of a 5 weight oil when it’s cold and has the viscosity of a 30 weight oil when its warm

SAE ratings says 5 is THINNER THEN 30. That’s the point. :facepalm

The lower the viscosity number, the thinner a fluid is.

If oil is easier flowing when warm it should have a **LOWER** number.

Edit: Do you not see how that’s an issue?

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