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Compression test and used oil analysis

Old 02-10-2019, 04:23 PM
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Compression test and used oil analysis

At 97,979 miles now and wanted to give my engine a bit of a checkup. I ran a compression test today, getting 125, 120, 120, 120. Spark plugs look great at 33k and of course replaced those. I had run Mobil-1 0w-40 Euro for 8,676 miles (2% life left) and the only concern with the oil analysis is fuel dilution. It looks proportional to previous samples, so I'm not feeling Blackstone's concern. They didn't see it causing any wear, but I'll change the oil sooner next time. I have no complaints about the performance. Still pulls like a beast for just having a Trifecta tune and intake.
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Old 02-10-2019, 05:40 PM
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Why 0-40 instead of the 5-30? Just curious if it's better.
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Old 02-10-2019, 06:13 PM
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I had 0w-40 leftover from when I ran it in my BMW. No reason I can't use it in the LNF.
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Old 02-11-2019, 03:03 PM
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wow, you are murdering that 40w. its shearing down to a 30w but 8k miles I see why. Likely due to the fuel dilution.

are you running rich? Trifecta tune, so probably.

I believe the bearings are aluminum, which is what you are showing here. Not bad for a car with 100k miles to be honest.

Silicon is very low, what intake and filter? those are amazing if you're running a K&N filter. They normally allow silicon parts in the 10+ PPM.
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Old 02-11-2019, 04:08 PM
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Originally Posted by leemanfor View Post
Silicon is very low, what intake and filter? those are amazing if you're running a K&N filter. They normally allow silicon parts in the 10+ PPM.
I was using a paper cone element from a Honda S2000.
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Old 02-11-2019, 04:14 PM
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Originally Posted by Solaris99 View Post
I was using a paper cone element from a Honda S2000.
ah that explains it.
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