Yep Mahle from ipd, Mobil1 5W-30 year around for us up north. I read somewhere a long time ago that you can always go from fossil-based oils to synthetics, but once you have run synthetics for quite some time, you can't go back. Something about the effect the synthetic have on the rubber seals. Any one else hear this? Urban myth?Order a case of Mahle -OEM oil filters from IPD.