# If an engine uses oil, can you change it less often?

**URL:** <https://forums.speedlife.net/t/if-an-engine-uses-oil-can-you-change-it-less-often/262152>\
**Category:** Shift518 Automotive\
**Created:** [January 4, 2012, 3:29pm UTC](https://forums.speedlife.net/t/if-an-engine-uses-oil-can-you-change-it-less-often/262152 "2012-01-04T15:29:25Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![TurboTravis](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/turbotravis/32/6406_2.png) [@TurboTravis](https://forums.speedlife.net/u/TurboTravis)\
**Post date:** [January 4, 2012, 6:22pm UTC](https://forums.speedlife.net/t/if-an-engine-uses-oil-can-you-change-it-less-often/262152/12 "2012-01-04T18:22:39Z")

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> [@Why are you into cars?](https://forums.speedlife.net/t/why-are-you-into-cars/47626/108):
>
> I agree the fluid needs to be added , but the same soot , contaminants etc are still in the oil and now just taking new oil and putting it in is not gonna remove said contaminants . Oil is just the same therey as a trans service putting new into old is not gonna make it better ,it just contaminants the new fluid .

Oh, I agree that it’s not going to remove contaminants, but it’s going to disperse them thru the total quantity of the fluid. The question is, is the total quantity of contaminants an acceptable amount when you change the fluid. May or may not be, depending on how ‘many’ of those contaminants are being burnt off.

The only answer is ‘will vary, depending on your particular case’.

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