Better or not, really isn't the question. Dexron-II has been replaced by Dexron-III. Any transmission that used Dexron-II can now use Dexron-III. Fluids labeled Dexron-III/Mercon are also acceptable.
DEXRON II or III
Dexron III/Mercon automotive transmission fluid (ATF) is generally recommended as a replacement fluid for automatic transmissions meeting original equipment manufacturers (O.E.M.) performance requirements for current General Motors, Ford, other domestic and imported passenger cars, vans and light trucks where DEXRON II, DEXRON II-E, DEXRON III, AND Ford/MERCON fluids are specified.Dexron VI is a partial synthetic which properties exceed dexron III by 100% in every area. Dexron VI can not be interchanged or repalced with DEXRON II, DEXRON II-E, DEXRON III, DEXRON-III/MERCON.
Any brand of Dexron II transmission fluid can be used in place of Castol Dexron II. There may be some minor differences between Castrol and a cheaper brand, but for the most part, the performance will be the same.
the owner's says :D- II or DEXRON III (DEXRON II)
Yes. Dexron III/Mercon automotive transmission fluid (ATF) is generally recommended as a replacement fluid for automatic transmissions meeting original equipment manufacturers (O.E.M.) performance requirements for current General Motors, Ford, other domestic and imported passenger cars, vans and light trucks where DEXRON II, DEXRON II-E, DEXRON III, AND Ford/MERCON fluids are specified.
DEXRON II but DEXRON III will also work.
If it is a A/T Powerglide, you can use Dexron or a synthetic such as Mobil 1 ATF. You may not be able to find Dexron, but you can use Dexron II or Dexron III.
Dexron II or Dexron III type ATF.....
Honda originally specified Dexron II for that transmission. Dexron II no longer exists, as it was later superceded by Dexron III. So, use Dexron III. You will frequently see bottles of ATF that say "Dexron III/Mercon" or "Dex/Merc" for short. That's the stuff to use.
DEXRON II (as in "2")
Dexron II originally in 1970. If you're buying fluid for it now you won't likely find any Dexron II as it has been replaced by Dexron III/Mercon fluid and that's what you'll use now.