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Oil analysis high lead count

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Old Jan 4, 2026 | 08:31 PM
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Default Oil analysis high lead count

Hey everyone, any engine experts in here? I'm new to this forum and looking for someone with more knowledge than I have on this topic. I recently sent out an oil sample to Blackstone labs as it's now winter. I was planning to try to make more power with the car come spring so figured I'd do a little health check.

The report came back with a high lead count and there was only 1800 miles on this oil. They found 14 ppm in my 1800 mile oil and the average is 2 ppm in 3800 mile oil. Blackstone sats this is indicative of bearing wear. I've been using mobil 1 0w40 euro car formula

The car is a 13 GS 6MT 77k miles sbe ls3 A&A V3TI making 15 lbs boost, cam, long tubes, full return style twin pump fuel system with flex fuel, id1050x injectors, and various other drive line upgrades / mods. The car is currently making 758 whp on 11° of timing with e60+. We stopped there because I didn't want to make much more than 750 for the first season after I put it together. Now I want to put more timing back into it and try to get over 800 whp but these lead numbers have me thinking I have other issues to worry about.

I think I already know what people are going to tell me to do lol but any advice is greatly appreciated.
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Old Jan 5, 2026 | 07:03 AM
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Welcome to the site.
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Old Jan 5, 2026 | 08:56 AM
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I wouldn't be concerned at all at that level. Keep on runnin'
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Old Jan 5, 2026 | 11:11 AM
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Have you ran any race gas in it?
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Old Jan 5, 2026 | 11:20 AM
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Wow, 758 WHP w/15 psi of boost on SBE and you're seeing premature wear. Whooda thunk? All (or most) kidding aside you did the right thing by getting a Blackstone as it looks like this info will help avoid a catastrophic failure. Time to snap open the coin purse and build a nice, stout forged bottom end engine so you can pursue your power goals properly.
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Old Jan 5, 2026 | 12:32 PM
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Originally Posted by DarkC-6
I wouldn't be concerned at all at that level. Keep on runnin'
What makes you say that?
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Old Jan 5, 2026 | 12:33 PM
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Originally Posted by grpweld
Have you ran any race gas in it?
No race fuel, just pump e85 or 93
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Old Jan 5, 2026 | 12:36 PM
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Originally Posted by ariZona06
Wow, 758 WHP w/15 psi of boost on SBE and you're seeing premature wear. Whooda thunk? All (or most) kidding aside you did the right thing by getting a Blackstone as it looks like this info will help avoid a catastrophic failure. Time to snap open the coin purse and build a nice, stout forged bottom end engine so you can pursue your power goals properly.
I'm not upset if the bearings are hurt just looking for expert opinion on whether or not these levels are in fact a sign that a catastrophic failure is right around the corner or not.
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Old Jan 5, 2026 | 09:37 PM
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Lead is high, but your copper and iron aren't. Have you not even used something like Techron additive?

If copper and/or iron levels were high, then I'd be looking at tearing that apart. I think that monitoring and sending another sample would make sense, but that's just me. You could also send that to your tuner.
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Old Jan 5, 2026 | 09:46 PM
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Originally Posted by Sock Monster
Lead is high, but your copper and iron aren't. Have you not even used something like Techron additive?

If copper and/or iron levels were high, then I'd be looking at tearing that apart. I think that monitoring and sending another sample would make sense, but that's just me. You could also send that to your tuner.

The only additive I use is revx e-boost which is supposed to be an ethanol fuel stabilizer. I fill 55 gallon drums at the fuel station and store them at my house. I treat the fuel directly in the drum.

And it is reassuring that all other metal levels were mostly normal.
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Old Jan 6, 2026 | 06:34 AM
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Originally Posted by Sock Monster
Lead is high, but your copper and iron aren't. Have you not even used something like Techron additive?

If copper and/or iron levels were high, then I'd be looking at tearing that apart. I think that monitoring and sending another sample would make sense, but that's just me. You could also send that to your tuner.

Now that I think I about it, I do use an additive in my E85. Revx e-boost, it's supposed to be an ethanol stabilizer. I use it because I store pump e85 in 55 gallon drums at my house as there's not many e85 stations in my state. I'll have to reach out to Revx to see what's in their product.
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Old Jan 6, 2026 | 07:35 AM
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Originally Posted by cornfedgs
What makes you say that?
Mainly due to no elevated copper or aluminum. As stated check on your fuel additive as it could be the source of the slightly elevated lead level.
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Old Jan 8, 2026 | 02:36 AM
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Hard to imagine that any fuel additive in the modern era would contain any lead.

Yes, the U.S. Environmental Protection Agency (EPA) heavily regulates automobile fuel additives under the Clean Air Act (CAA), requiring manufacturers to register them and provide data to ensure they don't harm public health or impair vehicle emission controls, with the authority to restrict or prohibit harmful substances. This oversight covers both gasoline and diesel additives, focusing on their impact on air pollution and vehicle performance.

By any chance is it possible to drop the pan without engine removal?
If yes, I would be tempted to drop the pan to at least inspect several main and rod bearings.

As always YMMV
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