qship96 wrote:I took a sample and will post results in about a week when I get them back from Blackstone for you all--Redline 10w-40 and 60u00 filter in use 97 days and 7103 miles.I am interested in the results as I normally do 4500-6000 max on the 90 day intervals.Replaced with Redline 10w-30 for the Fall quarter and then will go to 5w-30 for Winter as usual.
One oil analysis is only to establish a baseline. Barring extreme condtions, like a wiped bearing, a single analysis won't tell you much.You have to do regular analyses to get a trend over time to monitor engine wear. If Blackstone is like the oil analysis outfits I've dealt with, they will add your current sample to all prevoius ones into a chart, so you can track the amount of the different particles present in your oil. FWIW, oil samples need to be taken with the oil hot, at full operating temp, and you need to NOT take the sample from the first relase if you are taking it when you change oil. Instead, let some come out before you obtain the sample. This doesn't apply if you are suctioning the oil sample out, except that you still need to make sure the oil temp is hot, (like after driving 20 minutes).
Also, be advised that different oils have different amounts and kinds of metal in them for performance (of the oil) reasons. If you change brands or kinds of oil, (like going from regular Mobil conventional to Mobil 1, or changing from Mobil 1 to Redline) you have to start your charts all over again. Oil weight doesn't make a difference though, so you can shift from summer to winter weights if you want and continue your chart, as long as you are still using the same brand and type of oil.
Don't be shocked if you see large amounts of metals in your oil. Some mmanufacturers use metals in their oil to protect vulnerable components. If that happens, check with Blackstone. They are probably familiar with the additives and metals each oil company uses in their different oils. One way to assure you of what's standard for your oil is to submit a sample of fresh clean unuied oil to use as a true baseline. Then you can REALLY tell how your oil, and you engine, are performing and wearing.
One final tip. Watch for the silicon content. It's dirt. If there's a significant amount, it means you are either ingesting dirt from somewhere, or your oil filer isn't doing its job. There will be SOME silicon, but it shouldn't be much. Again, Blackstone can advise you of what's too high.
Keep us posted, okay?
Good luck.