Hey Terry!!
I never got the consumption problem resolved. My engine builder rebuilt the engine May 2003. He found nothing that made sense for the consumption. It was definately getting by the rings and appears to be doing the same. He went with a Z-06 "type" ring package, measured and rehoned the cylinders but, it has not helped. Static compression is good at 203psi across the board +/-3 psi and each cylinder leaks down about the same at 5-6 psi after 5 minutes.
During the rebuild we replaced the cam due to excessive wear on 2 of the cam lobes. We replaced all the lifters (Comp Cams "R"-
)rockers and valve springs. I still use 1 quart per 1000-1500 miles depending on oil weight. Engine dyno'd strong and continues to run great. Over the last 6 weeks been on the road to the tune of 5,000 miles. Running 80 mph+ I averaged 25.2 mpg with 4 tankfulls over 26 mpg! I'm a LC user now.
Terry, I have not had an oil analysis done since the last one you did for me. Considering the oil usage, would it be beneficial to have one done w/ the Castrol Start-Up after 5,000 miles? (7 quart capacity)
As for the Castrol Start-Up this morning (28 degrees F), there was a difference in sound vs. Mobil 1 5w30. In my case, I did not expect the piston slap to go away
but, it did quiet things down enough for me to notice.
Terry, I have not had an oil analysis done since the last one you did for me. Considering the oil usage, would it be beneficial to have one done w/ the Castrol Start-Up after 5,000 miles? (7 quart capacity)
As for the Castrol Start-Up this morning (28 degrees F), there was a difference in sound vs. Mobil 1 5w30. In my case, I did not expect the piston slap to go away