At 05:04 PM 6/19/2010, Don Hanson wrote: >in some of my higher mileage engines, based on that characteristic it had to >be *really really* slippery. Normal motor oil wouldn't make the screwdriver >'squirt' out of my grip, but the STP certainly did so. Something besides >just thick oil in there, I think. I use Mobil Vactra No. 2 Way Oil on the bed of my lathe (which is what it's meant for). One of its major attributes is to greatly reduce "stick-slip" friction so you can move the lathe carriage smoothly from rest even under considerable cutting pressure. I haven't tried your screwdriver test on it but I bet it would behave similarly. I don't use it on the spindle and other rotating parts of the lathe, and I don't put it in engines. Yours, David |
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