I think synthetics are the way to go on everything. They pay for themselves with that teny tiny increase in milage and power, plus you can run longer without changing the fluid. I have repeatadly seen Synthetic ATF make a transmission that was wowefully overloaded last twice as long (4 days instead of 2 days of testing

) I run namebrands that have been around and are trusted like Mobil,Valvoline Castrol, Elf,Neo,Swepco, or Red line but would shy away from moonglow/snakeoil no name additives and companies that you have never heard of or look fishy.:nervous:
Oil additives are like triple split super spark plugs ,fuel line magnets, tornado intake swirlies and grade 12 bolts.....:bs: :bs:
Kairo does have a point with the older vehicles, I have heard too that syn. will make the seals leak, mabye, mabye not but who wants to find out. Also if your old POS burns and leaks oil or is ready to crap out anytime, why spend the extra $$