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Another oil analysis

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Old 02-27-2024, 03:42 PM
  #706  
jumiss
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Originally Posted by Wayne Smith
The 997.2 is DFI. The DI40 is formulated specifically to eliminate (well, reduce) LSPI in DFI cars. DT40 is for the 997.1.

Second choice is kind of a mix, depending on who you talk to!!!
I should have known that because of my past friendships.
Here's a nugget from the past...Lake Speed, Jr.s father, Lake Speed and I graduated together in 1966 as seniors at Murrah High in Jackson, MS, just before Lake got nationally recognized in racing. At the time (1965-1966), He was already winning championships in the go-cart world all over the globe before moving to the Carolinas. Like Father like Son!
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Old 02-27-2024, 04:38 PM
  #707  
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Originally Posted by BucketList
Pete you're a knowledgeable enthusiast, but I will disagree with you here. I use Liquimoly Leichtlauf Hi-Tec and have metal wear numbers in the low single digits. Take a look at my last post in this thread. Granted I also use Ceratec. I just changed my oil last weekend and switched to LM Molygen since it has the moly formulated into it. I still used Ceratec since they work differently. I sent my last sample in. Unfortunately I almost forgot to collect it and got the end of the stream. I indicated that on the sample. Not sure how that will play out.

For the OP, the driven oil is fantastic. It also has a fantastic price! Take a look at LM Molygen. It's a similar formulation but less costly. It's a new formula for LM, however, so I don't think there are UOA's posted for that oil (yet).
Look at tapcon's numbers in post #695 for example (picking a random recent DI40 report posted here) and compare them to yours in post #500 (what you are referring to I believe). The LM is ~2-3x higher wear metals.... Your aluminum is 4-5ppm and Iron 6-7ppm vs tapcon's 2 ppm for both.
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Old 05-08-2024, 09:25 AM
  #708  
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Oil analysis looks good for 104k miles. Driven seems to show better than Motul I think. Experts feel free to chime in.

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Old 05-08-2024, 11:15 AM
  #709  
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Assuming that's FR50 5w50 you're using? I like that oil and had great results with it as well.
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Old 05-08-2024, 02:52 PM
  #710  
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Yes FR50
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Old 05-08-2024, 03:03 PM
  #711  
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@cannonball05 the fuel dilution went down significantly. Did you start using the Driven Injector Defender?
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Old 05-08-2024, 03:11 PM
  #712  
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Canonbal505 - What engine/year 997.1 997.2 3.6 3.8 ???
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Old 05-08-2024, 03:19 PM
  #713  
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Its a 2006 997.1 C2S 104k miles and no I am not using Driven injection defender or any injector cleaner.
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Old 05-08-2024, 03:24 PM
  #714  
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The fuel dilution only dropped significantly when switched to Driven. The Driven oils will inherently hold less fuel in suspension.
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Old 05-08-2024, 03:34 PM
  #715  
ADias
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Originally Posted by silver_tt
The fuel dilution only dropped significantly when switched to Driven. The Driven oils will inherently hold less fuel in suspension.
Or… (i) you idled less and (ii) got the engine oil hot enough to evaporate H2O and gas.
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Old 05-08-2024, 03:36 PM
  #716  
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Only thing I don't like in that report is the increased Copper and not sure where that would be coming from. Everything else looks great.
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Old 05-08-2024, 03:48 PM
  #717  
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Originally Posted by ADias
Or… (i) you idled less and (ii) got the engine oil hot enough to evaporate H2O and gas.
There are an infinite number of factors that were not controlled for. It could be winter blend fuel contributing too, I can think of a bunch of things. But when I switched to DI40 I did the exact same test at the exact same day of the year one year later with everything as close to the same as you could be, and my fuel dilution dropped almost in half.

Originally Posted by Petza914
Only thing I don't like in that report is the increased Copper and not sure where that would be coming from. Everything else looks great.
I am assuming that is from the bearings?
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Old 05-08-2024, 04:00 PM
  #718  
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Originally Posted by Petza914
Only thing I don't like in that report is the increased Copper and not sure where that would be coming from. Everything else looks great.
Says copper if for bushings and bearings. I wonder what would be the cause? Sounds scary...bearings. What would be a number to be concerned about?
From the legend:
"an alloy combined with tin to make bronze, which is a common material used to make bushings. Also, copper is used to make Babbitt bearings.
Typically indicates bearing, bushing or distributor gear wear. Check filter for wear debris."
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Old 05-08-2024, 04:39 PM
  #719  
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Originally Posted by silver_tt
There are an infinite number of factors that were not controlled for. It could be winter blend fuel contributing too, I can think of a bunch of things. But when I switched to DI40 I did the exact same test at the exact same day of the year one year later with everything as close to the same as you could be, and my fuel dilution dropped almost in half.



I am assuming that is from the bearings?
Unusual to see bearing wear with Driven oil, but Copper is probably bearing shims or bearing surface material.


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Old 05-08-2024, 05:45 PM
  #720  
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Originally Posted by Petza914
Unusual to see bearing wear with Driven oil, but Copper is probably bearing shims or bearing surface material.


I will see what the copper is in my next report. It is one point down from my last one.
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