Just as I was praising the M1 5w40 ESP that we are running in the e320 cdi, our local MB dealer just changed the 229.51 spec oil that they are using.
We took the '09 GL Bluetec in for its 1st service at 10k, and it came back filled with Valvoline 5w40 MST instead of the expected M1. I am a bit disappointed as our MB vehicles have always been run on Mobil 1 with excellent results, and I have never actually tried a Valvoline product.
Anyone tried the Valvoline Synpower MST oils?
We took the '09 GL Bluetec in for its 1st service at 10k, and it came back filled with Valvoline 5w40 MST instead of the expected M1. I am a bit disappointed as our MB vehicles have always been run on Mobil 1 with excellent results, and I have never actually tried a Valvoline product.
Anyone tried the Valvoline Synpower MST oils?