sailsmen
03-13-2011, 03:46 PM
With 541RWHP DynoJet on a Cobra Long Block, 40K miles and 46 passes down the 1,320' my oil analysis came back;
"Lead looks better this time, so we have no problems to report in the bearing area, or any other parts of the motor for that matter. The mildly low
viscosity wasn't due to any excess fuel and isn’t much of a concern either. It may have been a mix of 5W/20 and 5W/30 put in. The TBN was still nice and strong at 2.7, so lots of active additive was left. It looks like this 4.6L is doing great at almost 40,000 miles."
"Lead looks better this time, so we have no problems to report in the bearing area, or any other parts of the motor for that matter. The mildly low
viscosity wasn't due to any excess fuel and isn’t much of a concern either. It may have been a mix of 5W/20 and 5W/30 put in. The TBN was still nice and strong at 2.7, so lots of active additive was left. It looks like this 4.6L is doing great at almost 40,000 miles."