So bassicly u r sayin tha 1000 islike a 10w in oil or 7000 is 70 w in auto dif fluid thanks for the quick replys it was helpful. iknow that 70 wt diff oil automotive is thick so could u use them fluids in ur diff the automotive stuff that is also i was at my local recreation store and got some filter oil for foam filter and was lookin at foggers like after run oil i guess or is it compleatly different? . I use to do small engine repair and at the end of season we would fog the motors so they would not corode is this the same process and can i use this product they have them for carb and engine combination.thanks