Quote:
Originally Posted by bquatt
They definitely made some efficiencies within the engine in the TU, that on paper, sound great. Whether or not they come at the cost of decreased durability is yet to be known 
First world problems, i guess  |
Hold your horses, the B48tu has exactly the same internals and compression ratio as both m340i and supra. They are tuning them B58TUs with stock internals over 200hp/l. If youre about to tune your engine i would suggest you go for a high spec 0w40 or 5w40 and do your changes after half the recommended interval. But at 150hp/l i wouldnt be worried.