mixing fluids
#1
Member
CRAFTSMAN
Thread Starter
Join Date: Apr 2006
Posts: 62
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.
#3
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.
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.
#4
Senior Member
RACING JUNKIE
Join Date: Jan 2006
Location: La.
Posts: 2,890
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
Zip.
JMO
Zip.
#6
Senior Member
RACING JUNKIE
Join Date: May 2003
Location: Coldwater, MI
Posts: 2,998
Re: mixing
Originally Posted by markdunlap
Not quite on this subject, but does anyone use MOBIL 1 synthetic or Lucas synthetic trans fluid?
Mixing will not hurt
#8
Senior Member
DYNO OPERATOR
Join Date: Aug 2007
Location: Lost Creek, WV
Posts: 533
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?
Mixing will not hurt
TS1955
#9
Senior Member
RACING JUNKIE
Join Date: May 2003
Location: Coldwater, MI
Posts: 2,998
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.
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