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Reply to "Can I rely on dielectric constant?"

That dielectric seems to be very high even for the new sample. Most engine oils have a dielectric of between 2 and 3. I believe dielectric can be used very accurately to determine when your oil needs to be changed, however it takes quite a bit of testing and research to be able to do so. Not only can you track oil degredation but you would also be able to see if you have coolant in your oil, which then lets you know you have even larger problems. One thing to keep in mind is the dielectric is related to the viscosity of the oil. So a straight weight oil is easier to read than a multi-weight oil (ie 15W40). Dielectric also varies with temperature. Just a few of my thoughts on the subject......
Thanks,
CCCOUS
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