A follow up oil analysis as the last fuel sample had high fuel content. I forgot to tell the lab I installed the PuraDyn Bypass filter. 12000 Km's on this sample in one year, so I'll take another 12000 Km's. All in all I think it's looking good, what do you guys think? The truck is daily driven on highway 50-60 mph 20 miles each way to work and back.