The mobil1 Formula M ESP was only mb 229.51 rated. I bought a couple cases @ $7 qt. from an online vendor. I've also heard that NAPA has some great deals on the mobil1 oils pretty regularly. They discontinued the Formula M ESP- maybe because the 5w30 ESP also carries a mb 229.51 rating.
yeah I ran 3-40K in the Jetta with the stock pile I bought, no issues, with the DPF ashloading VCDS was tracking very linearly.
Granted car only lasted me 140K before it succumbed to VW's demise, would it have gone 200K without issues, hard telling, but I had not problem using the MB spec that also designed for DPF use.