Does anybody know...running Mobil 1, can you just change the filter after 3k miles and continue running the same oil? One person mentioned they do that with Amsoil--I've been wondering about this for some time, after a UPS friend said something about UPS doing that in their trucks.

Thanks,
Steve

Steve 98.5 SE V6, Blue, MTX, SVT Exhaust, Knauberized, E1 Wheels, KKM, Kenwood! SOLD!