I just purchased a 2002 Honda Odyssey-LX. The owners manual, for every type of fluid the vehicle uses, says use only Honda fluids. Is there any factual or performance basis for this requirement other than the manufacturer wanting the owner to buy the name brand fluid rather than some other brand of fluid? The owner's manual implies that terrible things may happen if other brand of fluids are used.
Nothings going to happen if you use other fluids. They just say that so you spend more money buying their product.