I’ve used Smith Bros on the last 6 engines, varying from 540 to 800 hp. Never an issue with any of those. Earliest engine being run since 2004. Just my experience.

Last edited by Chargerfan68; 09/03/20 07:23 PM.
1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.