# 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:** 9

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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, 6:12pm UTC](https://forums.speedlife.net/t/if-an-engine-uses-oil-can-you-change-it-less-often/262152/9 "2012-01-04T18:12:53Z")

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> [@evo X aero kit = hott](https://forums.speedlife.net/t/evo-x-aero-kit-hott/47689/21):
>
> Adding good fluid to old fluid does not renew anything ,it contaminates the new . That being said its like doing a tranny service and only replacing a 1/4 of the fluid , waste of time …

I’m going to respectfully disagree in regards to motor oil, but I do agree with your point about the tranny service.

Regardless, if a fluid level is low, it needs to be topped off. I’m just curious if an added benefit would being able to extend the OCI due to the introduction of new fluids.

In the case of my Corolla, we will find out, because at the rate that it uses oil, it’s going to of had several quarts added before I change it.

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