I saw this oil at the local wallyworld last week and it intrigued me. It was only in 10w30 but said it was a blend. I have a 94 Nissan 4x4 V-6 with 100k on the clock, it uses no oil on Havoline and Castrol. I drive 5 miles each way to work now and am worried about the 4 qt caapacity and the oil not getting warmed up. Is there any info on this oil? Is it heavier than say Castrol 10w30? Is the synthetic part Grp3 or PAO? Would this be a good oil for this truck? What additives (moly, caalcium, boron, etc) does this oil have?