At the moment it has RGT 5W30, but it’s going to get some of my big box stash of M1 HM 5W20 next (before winter). With its’ rather steep, long legged gearing, I want to see if I can crack the 40 MPG highway number with it. Need to get the new RT43s & new wheels (already got them mounted & balanced), new TYC headlights, paint the grille, & try to sweet talk a body guy I know into painting the hood (I think my brother followed every gravel truck on I-75, it looks like it got hit with bird shot). The xB is going to be laid up for a little bit-A/C evap (requiring dash removal), exhaust work, 1 window regulator, & maybe a new paint job; so Mrs. Bullwinkle has something to drive!