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Redline, RP or Amsoil......all other are wannbees.
By the way be sure to do your tranny, xfer case and diffs if another couple of MPG's interest ya. Just doing the motor is not doing synthetics justice.
I went from 16 to 19!!! MPG in one of my big ole Jeeps after a complete switchout. I will be doing my new FX when she hits 3000 mi.
You Mobil and other blended guys dont flame me, but those products dont even come close to taking the advantage of true synthetic lubricants. The analysis of the products are all over the net so do a little research and you will see what I mean.
Mobil does make a fantastic filter though.
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