Hi, was wondering if you guys could give me your advice on my first uoa with GC.The GC is in a 96 Jimmy 4.3L V6, 80,000 miles on it.I used to use Castrol 5-30 dino with 3,000 oci, with Wix or Acdelco filter.currently using a Wix filter with the GC and was going to do my first uoa at 5,000 oci, does that sound about right? I am looking to extend my oci's on this truck to 7,500 and I must say so far this oil has surpassed my expectations
and can see why so many people are on this bandwagon....... if I can only get some more in my area I will be all set