Friday I traded my BMW Z-4 in and got a toyota Tacoma with the 4.0 v-6. Unlike my last Taco this one has a timing chain. Needless to d=say I am thrilled to be rid of my little mistake and back into a Toyota truck. I am going to stick with the 5k factory OCI for a while. I was considering running dino with LC or a blend with lc or a syn such as M1 or Valvo syn power. I plan on staying with the recomeded 30wts but may bump up to 10w for summer intervals. Just thought I would let ya'll know. I am strugling with the syn -vs- conventional internal sgtruggle for the temperatures of Central texas in a truck that may do some light hauling and occasional towing(I have a factory tow package) and hauling with 5k/6 month intervals with mixed trip distance. I am starting to belive in the SM oils and new additive technology. Of course I will let UOA's guide me.