Amsoil 25000! 6 micron filter WOW , what crap. Oil looses additives. My friend used amsoil and at 98000 his chevy van is so crapped up, so bad he sold it. I will stick with Mobil 1, where I know they pay and get the best scientists money can buy, and I will keep to the 4-5000 mile change.
Wrong newsgroup. you want alt.autos.toyota.prius
Or, check on
Less additives in synthetics because they are made in a lab. synthetics can't be compared to dino.
Did he have an engine flush done before changing over to synthetics?
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