# LS1 Oil Spec

**URL:** <https://forums.speedlife.net/t/ls1-oil-spec/59568>\
**Category:** NYSpeed Automotive\
**Created:** [December 11, 2008, 12:38pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568 "2008-12-11T12:38:23Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![bigwoode](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bigwoode/32/5175_2.png) [@bigwoode](https://forums.speedlife.net/u/bigwoode)\
**Post date:** [December 11, 2008, 12:38pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/1 "2008-12-11T12:38:23Z")

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For the last 2 oil changes on my LS1, my dipstick has been reading WAY over filled (even when only 4 quarts have been added)…

I see that the manual calls for 5.5 qt, can anyone verify? I have only put in 4 and change at the moment…

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**Author:** ![RLB](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rlb/32/5196_2.png) [@RLB](https://forums.speedlife.net/u/RLB)\
**Post date:** [December 11, 2008, 12:39pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/2 "2008-12-11T12:39:58Z")

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5.5 quarts is what mine takes.

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**Author:** ![bigwoode](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bigwoode/32/5175_2.png) [@bigwoode](https://forums.speedlife.net/u/bigwoode)\
**Post date:** [December 11, 2008, 12:42pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/3 "2008-12-11T12:42:03Z")

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Gotcha, I just hate playing the guessing game, like to see it on the dipstick

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**Author:** ![LZ1](https://avatars.discourse-cdn.com/v4/letter/l/7ab992/32.png) [@LZ1](https://forums.speedlife.net/u/LZ1)\
**Post date:** [December 11, 2008, 12:44pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/4 "2008-12-11T12:44:12Z")

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A lot of people run 6qts…

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**Author:** ![Firehawk853](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/firehawk853/32/7607_2.png) [@Firehawk853](https://forums.speedlife.net/u/Firehawk853)\
**Post date:** [December 11, 2008, 12:46pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/5 "2008-12-11T12:46:00Z")

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people use 6qts becase they are scared that the oil pump will suck air when they are hard in the corners. Look out for those on ramps!

5.5qts is standard.

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**Author:** ![jt76](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jt76/32/5100_2.png) [@jt76](https://forums.speedlife.net/u/jt76)\
**Post date:** [December 11, 2008, 12:46pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/6 "2008-12-11T12:46:26Z")

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my car takes 6

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**Author:** ![bigwoode](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bigwoode/32/5175_2.png) [@bigwoode](https://forums.speedlife.net/u/bigwoode)\
**Post date:** [December 11, 2008, 12:46pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/7 "2008-12-11T12:46:33Z")

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I have a quart of Lucas Oil Stabilizer, anyone else run that?

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**Author:** ![Wahoo](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/wahoo/32/8265_2.png) [@Wahoo](https://forums.speedlife.net/u/Wahoo)\
**Post date:** [December 11, 2008, 12:53pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/8 "2008-12-11T12:53:39Z")

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I put in 6.

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**Author:** ![bananas25](https://avatars.discourse-cdn.com/v4/letter/b/ea666f/32.png) [@bananas25](https://forums.speedlife.net/u/bananas25)\
**Post date:** [December 11, 2008, 1:01pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/9 "2008-12-11T13:01:03Z")

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5-3/4

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<div class="post-metadata">

**Author:** ![bigwoode](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bigwoode/32/5175_2.png) [@bigwoode](https://forums.speedlife.net/u/bigwoode)\
**Post date:** [December 11, 2008, 1:31pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/10 "2008-12-11T13:31:58Z")

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Does anyone else use water to wash out the old oil first? I want to clean the engine up

Kidding…kidding…

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**Author:** ![bamfer9duce](https://avatars.discourse-cdn.com/v4/letter/b/58956e/32.png) [@bamfer9duce](https://forums.speedlife.net/u/bamfer9duce)\
**Post date:** [December 11, 2008, 1:43pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/11 "2008-12-11T13:43:01Z")

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If four quarts is reading over filled in your LS1 then I’d have to say you have the incorrect dipstick or you aren’t getting all the oil out in the first place.

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**Author:** ![bigwoode](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bigwoode/32/5175_2.png) [@bigwoode](https://forums.speedlife.net/u/bigwoode)\
**Post date:** [December 11, 2008, 1:46pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/12 "2008-12-11T13:46:53Z")

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^It is all coming out, and eventually over time the dipstick agrees with the amount put in, but others have told me they have ran into the same problem…

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**Author:** ![Firehawk853](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/firehawk853/32/7607_2.png) [@Firehawk853](https://forums.speedlife.net/u/Firehawk853)\
**Post date:** [December 11, 2008, 1:51pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/13 "2008-12-11T13:51:45Z")

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> [@bigwoode](#):
>
> I have a quart of Lucas Oil Stabilizer, anyone else run that?

standard Lucas Oil Stabilizer is much to thick for an LS1 or any Gen III engine that is in good shape. Lucas synthetic on the other hand will work.

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**Author:** ![JustinH](https://avatars.discourse-cdn.com/v4/letter/j/9fc29f/32.png) [@JustinH](https://forums.speedlife.net/u/JustinH)\
**Post date:** [December 11, 2008, 2:05pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/14 "2008-12-11T14:05:41Z")

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A dipstick is not a magical oil level reading device…

Think about it…

The one on my f150 was off by about half a quart…

That doesn’t mean just add extra oil lol.

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<div class="post-metadata">

**Author:** ![RLB](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rlb/32/5196_2.png) [@RLB](https://forums.speedlife.net/u/RLB)\
**Post date:** [December 11, 2008, 2:07pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/15 "2008-12-11T14:07:14Z")

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Some people put in 6 quarts because they run an over-sized filter. If you use a standard filter 5.5 quarts is fine.

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**Author:** ![Studderin](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/studderin/32/7197_2.png) [@Studderin](https://forums.speedlife.net/u/Studderin)\
**Post date:** [December 11, 2008, 3:16pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/16 "2008-12-11T15:16:37Z")

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5.75 on change, and add the next morning after racing the car to keep the level up. When it was a stock motor, with the factory PCV valve still, and LS1 valley pan. It was burning about a qt every 1k miles. Beat on LS1 run the best 🙂

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**Author:** ![9c1ny](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/9c1ny/32/5050_2.png) [@9c1ny](https://forums.speedlife.net/u/9c1ny)\
**Post date:** [December 11, 2008, 5:31pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/17 "2008-12-11T17:31:46Z")

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I use the K&N HP2006 filter which allows me to run 6 quarts

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<div class="post-metadata">

**Author:** ![Wahoo](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/wahoo/32/8265_2.png) [@Wahoo](https://forums.speedlife.net/u/Wahoo)\
**Post date:** [December 11, 2008, 6:27pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/18 "2008-12-11T18:27:33Z")

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Mine doesnt burn anything im lucky. I use 6 qts and it comes out perfect on the dip stick.

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**Author:** ![psychopjv](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/psychopjv/32/7251_2.png) [@psychopjv](https://forums.speedlife.net/u/psychopjv)\
**Post date:** [December 11, 2008, 8:03pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/19 "2008-12-11T20:03:05Z")

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> [@Red00WS6](#):
>
> Mine doesnt burn anything im lucky. I use 6 qts and it comes out perfect on the dip stick.

you also drive like a pansy.

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**Author:** ![turbo\_ls1\_ss](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/turbo_ls1_ss/32/7303_2.png) [@turbo\_ls1\_ss](https://forums.speedlife.net/u/turbo_ls1_ss)\
**Post date:** [December 11, 2008, 8:35pm UTC](https://forums.speedlife.net/t/ls1-oil-spec/59568/20 "2008-12-11T20:35:20Z")

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i run a full 6qts… i have a turbo to feed too, and that much more heat to shed. if i go with an oil cooler, i would assume that’s another half quart or so.

you will be fine with the full 6qts. stock ls1’s do burn a little oil over time, but nothing to be worried about

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