Thank you. Re Castrol, yes prices are not bad and not a concern given how much gas it consumes. I now need to figure out the LL cerifivation for all the non-BMW labeled oils. I read the manual that the oils with certain numbers i.e 5-40, etc. qualify as LL, but I think it may be my misinterpretation.

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2011 BMW X5M (was "loving the torque!" but used to it now - want more)
1997 Suzuki GSX-R750