Originally Posted by maw76
does your Eco light still come on maybe just as long as 5 weight is used if so I might go up then to 5w30 or 40 in summer would be nice if we had mds light come on when it is in use.
Eco light still comes on, so far only been less than a tank of fuel but no change in mpg as of yet. I wish I could turn off MDS in the EVIC. I didn't buy my truck because I wanted an economy vehicle