a parts store told me that M1 is discontinuing the 0w40 and is releasing a 0w30 which may meet the specs, I don't know. I am going with this product next time I change my oil:

<img src="http://www.germanautoparts.com/displayimage.php?file=10490128M3L9">

M1 0W-40 is the only Mobill oil that meets VW 502.00, the newer version of VW 500.00, which our engines require. M1 10W-30 does not meet our engines' high temperature high shear requirement.

An oil that should work well in our engines without bearing the VW 502.00 approval should be Mobil Delvac 1 5W-40. That's a comnmercial oil for diesel and gas engines. It's exensive (cca $7 a quart) and hard to find.

The Lubro Moly 5W-40 should be an excellent oil for our motors.

PS: I don't believe that Mobil will discontinue M1 0W-40...