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Here's the screen shot from Blackstone. I ask about copper because it's double the universal average. Not that it's a problem, just curious. This car has 23,000 miles and has had 5 oil changes, I would hope there is no leftover assembly lube or anything left in there!

Here's my second analysis. It looks good, nothing to worry about. The fuel dilution is gone, it was either caused by short trips (didn't have a chance to burn off) or my rings have finally seated. What's copper from? Bearings? Here's the discussion on the original sample...

I wonder if the engine still breaking in (e.g. rings not seating) is the source of the fuel in the oil, and that will decrease as the rings continue to seat?

Originally Posted By: Doug Hillary Hi, ahoier - You said: "Are used oil analyses that popular to make "universal averages" of similar engines, with similar mileages?" Your caution is very well placed when reading individual "single pass" UOAs here on BITOG - or elsewhere Individual engine...

I drive this car to work once or twice a week, the commute is about 30-40 minutes each way. That should be enough to evaporate the fuel, shouldn't it? I haven't done a drive longer than that in some time. The electric engine bay cooling fan comes on (as it should, the mid-engine layout doesn't...

Originally Posted By: chubbs1 I think B_S made the suggestion of changing the oil because of fuel dilution. That being said the oil looks like it is holding up well, I would change at 4k or at 12 mo. since you are doing auto-crosses and such. Wouldn't a good long drive evaporate that fuel?

I just took a sample. The oil only has 2,600 miles on it.

Originally Posted By: Hokiefyd If I'm not mistaken, that kinematic viscosity (cSt @ 100*C) looks WAY off the chart. Shouldn't it be in the 15-16 cSt range for a 40wt oil? The saybolt viscosity (SUS @ 210*F) looks correct. Was that kinematic viscosity a typographical error? Yes, it was a typo...

This oil has been in service for about 8 months. I did three or four autocrosses on this oil. There are about 14,600 miles on the engine, and about 2,600 miles on the oil. Here are the comments by Blackstone. They say change the oil out to lower accumulations. Accumulations of what? The metals...

Hi Frank, thanks for the fast track instructions. Is there a typo in there, though? You say "If you are planning on staying with dino or group III a simple oil change interval can be used for the rinse." Do you mean "single oil change interval" instead of "simple?"

As a person who only really needs the ring packs cleaned, I would like to hear more about the fast track method.

I've done it, and found it to be effective.

I don’t understand your comment about “You get to choose what you would rather hear was run in the crank case.” For me, the issue would not be what I would rather hear, the issue would be exactly what this product was. Pick up the phone, call the guy, and politely explain that you are the owner...

Hi again Gary, Your points are well taken, and I certainly understand Frank’s concern with “fielding endless repetitive questions that revolve around the same recurring themes regardless of how he alters his instructions or reconfigures his web site.” I wouldn’t like that either. To play...

Originally Posted By: plottman no, it's actually around 6 bucks. my wife picked up 2 bottles(i have no idea why). I usually use techron...so is plyether amines a good thing or a bad? PEA's are a good thing. They are what you want in a cleaner.

Quote: My source tells me that they are still use PEA in the REGANE and the Large Vehicle Fuel System Cleaner. I know this to be true, but I seem to get better "seat of the pants" results with Regane than the Large Vehicle Fuel System Cleaner. I can't explain it.

Is it one of those cheap cleaners? You know, $1.99 or $2.99 or so? If so, don't bother. See if you can find the MSDS online, and see if it lists polyether amines in it.

That's what I was looking for, thanks!

Originally Posted By: Frank it was 5:30 AM when I tried to answer your post I lost the edit function. Auto-Rx is polar. Exactly what is your problem using Auto-Rx ? 5 ounces of synthetic oil sealed in an oil cooler and a return line ? Why can,t you rinse according to instructions ? is there...

Originally Posted By: Frank Kang, Auto-Rx is not polar and cleans deposits by putting them in liquefied form. Group IV Synthetics are fine (Exception being if you have sludge issues or a seal leak) The rinse phase is just that a rinse try reading the FAQ.You will find answers to your...