mixing fluids

Old 08-19-2011, 07:36 AM
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qiksix
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Default mixing fluids

just fitted a b&m deep pan to my t350, after searching here guy's are recomending to run 'f' type fluid. i have been running dexron III so the convertor still has a bit left in it, should i mix the 'f' type or keep using the dexIII.
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Old 08-19-2011, 03:15 PM
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markdunlap
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Default mixing

Not quite on this subject, but does anyone use MOBIL 1 synthetic or Lucas synthetic trans fluid?
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Old 08-20-2011, 05:40 AM
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TheRabbit
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I don't think it will hurt mixing them together.

My trans builder always tells me to run Lucas, but I never have. I've used Red Line and Royal Purple and used the cheaper B&M trans fliud too.
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Old 08-20-2011, 06:37 AM
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zipper06
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As everyone knows the Dexron fluid normally used by GM has a slipping agent, GM has never rccommended the type F because it doesn't contain the slipping agent, which Ford forever has recommended and shifts more solid. I've run Type F for over 40 yrs, in both racing and street cars and i've mixed them. I don't buy the special oils just OTC and i never use an additive like seal savers or anything else. I've tried the B&M and saw no difference from OTC's. I do use The VR1 in the alcohol engines, otherwise it's just OTC's.

JMO

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Old 08-20-2011, 03:54 PM
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qiksix
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thanks guy's i think i'll try the f type fluid.
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Old 08-20-2011, 08:02 PM
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hammertime
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Default Re: mixing

Originally Posted by markdunlap
Not quite on this subject, but does anyone use MOBIL 1 synthetic or Lucas synthetic trans fluid?
Mobil 1 or Amsoil synthetic is great stuff, a 30 degree drop in the round robin late rounds.

Mixing will not hurt
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Old 08-21-2011, 12:32 PM
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wazup
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I bought a P/G from FTI and ask them what fluid did they want me to run in it and said type F do to it dont foam like other fluids.
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Old 08-21-2011, 04:28 PM
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TS1955
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Default Re: mixing

Originally Posted by hammertime
Originally Posted by markdunlap
Not quite on this subject, but does anyone use MOBIL 1 synthetic or Lucas synthetic trans fluid?
Mobil 1 or Amsoil synthetic is great stuff, a 30 degree drop in the round robin late rounds.

Mixing will not hurt
X2...on Amsoil synthetic trans fluid.

TS1955
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Old 08-21-2011, 04:49 PM
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hammertime
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Originally Posted by wazup
I bought a P/G from FTI and ask them what fluid did they want me to run in it and said type F do to it dont foam like other fluids.
thats not all the way true, I was a diehard Type F guy for years until I bought some "wolfs head" brand ... it foamed worse then anything I've ever seen. Stay away from anything they make

Amsoil also does not foam, a good fact if none of you have done this, fluids are a major deal on converter stall. You can tighten or loosen a converter with just a fluid change
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