James,
I see you are from Garland...isn't this a suburb (?) of Dallas? I know I have seen at least one other member of this forum from Garland, and I deal with Industrial Woodworking who I believe is headquartered in Garland also.
Good luck on the truck, and it isn't against the "Bolt Law" to put a VI (viscosity index)improver in when you change the oil. These are additives for high mileage rigs that help keep the blood pressure up until the inevitable rebuild.
Stuart
