Hi Gang,
I was just at wally world to pick up some 5w-30 M1 HM and saw that they reconfigured the isle again, They had Castrol Syntec Blend 5w-30 clearence for $7.00 for a 5qt jug. I could not resist. I grabbed all they had. Now what to do. I know the Suburban will be ok with 6mo oci's as we...