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Well I guess I'm going to be the lone dissenting voice. I use synthetic fluid exclusively in all my stuff. It lasts longer, isn't affected by heat and will increase your stall speed about 300 rpm. Amsoil is probably as good as it gets but there are plenty of others including Mopar ATF+4. I use Hyundai SP III because I get it for free but it's just synthetic Dexron.

Type F is a friction modified fluid Ford had to use because their transmission clutch packs wouldn't hold. It's really not a viable fluid with todays materials, it's 40 year old technology that has past it's usefulness.



A couple of things. You do realize, that Amzoil synthetic atf mimicks Type F.
And, 00232-19012 SP111 is spendy in quart bottles. Around $4.50 per qt. cost (I'm a Hyundai Parts Manager). If you get it free, kudos. I know I wouldn't buy it, with all the other choices.