Just wanted to check in and say hello...Have not been able to spend anything on my xj daily driver lately. Been spending the doe on house repair's for awhile. But I can tell you that I changed what oil I run to the Valvline conventional over to the Durablend type and I am 100% happy with the better performance... the Durablend is for more of the city type driving and for when you pull a trailor. The Valvoline web-site say's Durablend is a Mixture of Conventional & Synthetic Blend....