Got rid of 2008 MDX, found a 2014 RDX Tech with only 9K miles while looking at 2016 RDX. Dealer offered a very good deal with Certifiedextended warranty. Ended up picking it up. Time to get a set of winter tires. In my tool shed I have a set of after market 18 x 7.5 alloy with 40mm offset. Dual bolt pattern 5x100 or 5x114.3. Any one knows RDX wheel bolt pattern? Is it 5x114.3? Another question is, is it mandatory to have TPMS? Comments appreciated.