if you think you're buying
synthetic make sure it is what you think it is. some of the oils are blended, or what can be called
synthetic because it is cracked but not exactly in the same league as some of the higher priced synthetics.
then you have different additive packages that might make a petro based
oil better then than what is called a
synthetic.
there are diff. groups of
oil, 1,2,3,4,5.
1 being petroleum and 5 being 100% pao, or something like that.
plus the stuff seems to be always changing in formulation, so finding up to date info is sometimes difficult.
http://www.bobistheoilguy.com/forums...s.php?ubb=cfrm
is a good website if you want to do some research.
personally, i like this stuff if you want balls to the walls
oil
http://www.aerospacelubricants.com/
there is a guy that sells it on ebay at a reasonable price also, priced about $8 a qt.