[tj310]

One of the reasons they put the level so high in a stock rear is so the side carrier bearings are bathed in oil. If you try to run at the stock level you will most likely see leaks as well as an associated power loss . idealy I would run it full to warm up and then drain out all but a litre to race. But that's alot of work and I 've only done it that way once or twice.---Trevor