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Engine oil appearance after engine break-in

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Old Oct 7, 2019 | 11:46 AM
  #1  
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Car: 1986 Pontiac Firebird
Engine: 383 SBC
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Axle/Gears: Hawks 8.8 with 4.10’s
Engine oil appearance after engine break-in

So this is my building inexperience speaking here. I’ve not ever replaced oil after just a few hundred miles before but as I was draining the break-in oil out of my brand new engine it had an odd, unexpected, disconcerting look to it. It wasn’t milkshake-ish but it was a cloudy brown color. No shiny bits in the oil pan or golden sheen to the oil but cloudy and that concerns me. On the dipstick it’s transparent though. It’s 30w break-in oil, don’t remember the brand. Is this normal or should I be concerned about coolant seeping into my crankcase?
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Old Oct 7, 2019 | 11:56 AM
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From: Texas
Car: 1986 Pontiac Firebird
Engine: 383 SBC
Transmission: T56
Axle/Gears: Hawks 8.8 with 4.10’s
Re: Engine oil appearance after engine break-in

Maybe these pictures will show a little better than what I can describe. The oil smells normal if that means anything, not sweet and it wasn’t foamy although it’s been about 20hrs since I last drove the car.


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Old Oct 7, 2019 | 12:14 PM
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From: Texas
Car: 1986 Pontiac Firebird
Engine: 383 SBC
Transmission: T56
Axle/Gears: Hawks 8.8 with 4.10’s
Re: Engine oil appearance after engine break-in


Lmao it look like Predator blood.
And I’m an idiot. I just remembered that I put UV reactive leak detection dye in the oil a couple weeks ago. That’s probably why it look like it does. NEVERMIND!
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Old Oct 7, 2019 | 05:35 PM
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Car: 1989 IROC Convertible
Engine: 350 TPI L98
Transmission: WC T5
Axle/Gears: 3.42
Re: Engine oil appearance after engine break-in

Lol. Glad to hear its OK-ish.
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Old Oct 8, 2019 | 02:39 AM
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From: Meriden, CT 06451
Car: 84 TA orig. 305 LG4 "H" E4ME
Engine: 334 SBC - stroked 305 M4ME Q-Jet
Transmission: upgraded 700R4 3200 stall
Axle/Gears: 10bolt 4.10 Posi w Lakewood TA Bars
Re: Engine oil appearance after engine break-in

As long as there is no evidence of metal or the silver sheen, I would say you are good to go.
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