10-06-2013, 12:00 AM
Just changed the oil at 6200 miles with Amsoil 10w40 synthetic. I was thinking of going 4000 miles before the next change versus 3000 miles on Honda GN4. My question is is their a place I could send a sample of the Amsoil to have it analyzed to see how much life the oil had left after 4000 miles running??? New cars and trucks have an oil life indicator does anyone know how they work????
