Break in oil for new GMPP crate LS3
Thread Starter
Teching In
Joined: Nov 2018
Posts: 14
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Break in oil for new GMPP crate LS3 GM's crate installation instructions specifically say to use only Dexos 0-40 full synthetic oil, but most everything I've read says to use a non synthetic oil for break in.
Something about friction modifiers and detergents in synthetic that could slow down the break in. One would think that GM would give the best instructions to minimize warranty claims.... am I missing something??
Something about friction modifiers and detergents in synthetic that could slow down the break in. One would think that GM would give the best instructions to minimize warranty claims.... am I missing something??
Launching!
Joined: Jan 2011
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From: chicago
GM's crate installation instructions specifically say to use only Dexos 0-40 full synthetic oil, but most everything I've read says to use a non synthetic oil for break in.
Something about friction modifiers and detergents in synthetic that could slow down the break in. One would think that GM would give the best instructions to minimize warranty claims.... am I missing something??
Something about friction modifiers and detergents in synthetic that could slow down the break in. One would think that GM would give the best instructions to minimize warranty claims.... am I missing something??
A full synthetic oil is not what I'd start with. I use Amsoil SAE 30 break-in oil on my builds and I can't think of anything special with an LS3's internal engine parts that would merit starting with a full synthetic oil for break in.
Maybe the engine has already had it's initial break-in and that's why they're recommending the synthetic oil.
Maybe the engine has already had it's initial break-in and that's why they're recommending the synthetic oil.
Thread Starter
Teching In
Joined: Nov 2018
Posts: 14
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If in doubt, I think it couldn't hurt to use break in oil anyway, something like Joe Gibbs/Driven's BR30
Would you post a copy of the instructions stating to use a synthetic to break in the engine?
I remember reading a few of the manuals that came with the LSX and LS3 525 crate engines and they were vague on actual break in oil. I doubt that your crate engine has any run time on it either.
Would advise to use a quality non-synthetic oil to break in your new engine.
I remember reading a few of the manuals that came with the LSX and LS3 525 crate engines and they were vague on actual break in oil. I doubt that your crate engine has any run time on it either.
Would advise to use a quality non-synthetic oil to break in your new engine.
Thread Starter
Teching In
Joined: Nov 2018
Posts: 14
Likes: 3
Here is a link, the reference to the oil is on the first page.
https://www.chevrolet.com/content/da...1_Supplier.pdf
https://www.chevrolet.com/content/da...1_Supplier.pdf
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