Kubica blew his #2 in China in FP2, and his #4 in Monaco in FP2. He went back to #1 for the rest of Monaco. BMW Sauber havnt said what the reasons were for his engine to blow, but the one in Monaco looks like a total failure of that block, the China replacement, i think was after they found something in that block that will blow, so have decided to park that one and declare it as a blown engine.
Sutil blew his #3 blew after Bourdais T-Boned him in the Turn 1/2/3 accedent at Spain, when he was T-Boned, he lost all oil in the system and the engine ran for 9 seconds without oil, resulting in a totally seized block. He went back to #1 for Monaco.
Vettel blew his #3 in FP1 at Monaco, total left bank failure. He went back to #1 for the rest of Monaco as well.
But the relyability of all the engines so far has been amazing, Altho, the BMW engines look on paper the least relyable at the moment, due to Kubica on the whole part.
Total km completed so far by engine type:
Mercedes FO108W - 23838.545
Toyota RVX-09 - 19615.273
Renault R27 - 16016.439
Ferrari 056 - 15752.040
BMW P86/9 - 7970.490
Rosberg has also done the biggest distance so far at 5221.764km.
