Has Anyone Driven a Lot of Miles on an MBS Forester Using B5-B20 Without Damage
We have a 2017 Forester MBS 2401W with the Bluetec diesel engine. The Mercedes warranty claims that damage to the BlueTec engine will not be covered if the owner uses greater than B5 diesel fuel (recently the position has been softened a bit, but leaves Mercedes liability unanswered). A warning sticker is also near the filling cap. Unfortunately, because of deceptive sales practices in the U.S. nobody (dealers, manufacturers) tell prospective buyers that it is virtually impossible to get B5 or lower in many States.
So, is the Mercedes claim of engine damage correct or exaggerated? Has anyone used biodiesel containing more than the B5 (i.e., B6-B100) in their late model Merecedes Bluetec without damage?