The BCI, Battery Council International, has been striving for uniformity in plate composition in all car jar batteries for at least 20 years. This means minimal differences in alloy composition. Trojan was one of the few holdouts but incrementally reduced the precentage of antimony in its positive plates on car jar BCI batteries. Another concession is the transition of and changes to the negative plates which results in a hybrid battery.
Up until the mid eighties BCI truck batteries had standard 5% Lead antimony / Lead dioxide plates. Most of those batteries are now indistinguishable from auto RV batteries. Price oriented "golf car" batteries are drifting away from original configurations. Primarily this results in how standard maintenance rote is applied.