# Should I do an Engine Flush?

**URL:** <https://community.cartalk.com/t/should-i-do-an-engine-flush/163374>\
**Category:** Maintenance/Repairs\
**Tags:** toyota, camry\
**Created:** [April 25, 2020, 3:33am UTC](https://community.cartalk.com/t/should-i-do-an-engine-flush/163374 "2020-04-25T03:33:42Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![john.smith0909123\_160324](https://avatars.discourse-cdn.com/v4/letter/j/3be4f8/32.png) [@john.smith0909123\_160324](https://community.cartalk.com/u/john.smith0909123_160324)\
**Post date:** [April 25, 2020, 3:33am UTC](https://community.cartalk.com/t/should-i-do-an-engine-flush/163374/1 "2020-04-25T03:33:42Z")

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So this is probably a noob question here, and I’m learning as I go. Should I do an engine flush? I have a 2005 Camry with 160k miles. Oil changed regularly every 5000 miles like clockwork in accordance with the owners manual.

 ![IMG_20200121_162631041](https://global.discourse-cdn.com/cartalk/original/3X/d/b/db48d12971ee4bc114b7484211e99586623c5236.jpeg)  
This is my engine with valve cover removed when I replaced the gasket. It looks pretty clean to me. So I don’t think I have lots of gunk or sludge in my engine and don’t think chunks of sludge will come off and block passageways our clog the screen filters. It’ll just get some of the varnish off. Should i risk doing an engine flush? My engine I believe is clean and the flush would make it even cleaner. Sorry if this is a noob question, I’m trying to learn here. I’m learning more about cars every day and hope that continues.

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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:** [April 25, 2020, 3:36am UTC](https://community.cartalk.com/t/should-i-do-an-engine-flush/163374/2 "2020-04-25T03:36:55Z")

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I don’t see why?

Looks pretty damn clean to me!

Tester

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**Author:** ![oldtimer-11](https://avatars.discourse-cdn.com/v4/letter/o/e79b87/32.png) [@oldtimer-11](https://community.cartalk.com/u/oldtimer-11)\
**Post date:** [April 25, 2020, 3:49am UTC](https://community.cartalk.com/t/should-i-do-an-engine-flush/163374/3 "2020-04-25T03:49:45Z")

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Don’t fix what isn’t broken. There is no upside to doing it and the possibility of doing harm.

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**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\
**Post date:** [April 25, 2020, 12:55pm UTC](https://community.cartalk.com/t/should-i-do-an-engine-flush/163374/4 "2020-04-25T12:55:11Z")

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What does underside of valve cover look like? Any film you can scrape off with finger? No? Don’t flush motor then.

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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:** [April 25, 2020, 1:54pm UTC](https://community.cartalk.com/t/should-i-do-an-engine-flush/163374/5 "2020-04-25T13:54:54Z")

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john.smith0909123\_160324:  
With an engine that clean, I don’t see a flushing needed at all.

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**Author:** ![bcohen2010](https://avatars.discourse-cdn.com/v4/letter/b/779978/32.png) [@bcohen2010](https://community.cartalk.com/u/bcohen2010)\
**Post date:** [April 25, 2020, 3:21pm UTC](https://community.cartalk.com/t/should-i-do-an-engine-flush/163374/6 "2020-04-25T15:21:47Z")

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NEVER do a crankcase oil flush. NOTHING good can come of it. Also, your engine is clean, no sludge buildup anywhere.

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**Author:** ![asemaster](https://avatars.discourse-cdn.com/v4/letter/a/5f9b8f/32.png) [@asemaster](https://community.cartalk.com/u/asemaster)\
**Post date:** [April 25, 2020, 4:41pm UTC](https://community.cartalk.com/t/should-i-do-an-engine-flush/163374/7 "2020-04-25T16:41:48Z")

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I wish half the engines I worked on looked that clean.

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**Author:** ![Rod-Knox](https://avatars.discourse-cdn.com/v4/letter/r/a183cd/32.png) [@Rod-Knox](https://community.cartalk.com/u/Rod-Knox)\
**Post date:** [April 25, 2020, 7:20pm UTC](https://community.cartalk.com/t/should-i-do-an-engine-flush/163374/8 "2020-04-25T19:20:39Z")

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I’ll fall in line here and agree. Continue with the good maintenance done so far and enjoy the ride.
