Been meaning to do this for a while. The duration of the change was shorter than I hoped for but this oil had an extreme duty cycle on it. We do a ski race with this boat sometimes where it runs WOT for about an hour and this oil includes race duty. It’s got a large oil cooler and typical post cooler temperature ranges between 190-210 pending water temperature.
This is a stock bottom end carbureted marine 454 with around 1150 hours. Running VR1 20-50 conventional and a special wix filter to work with the cooler (it lacks a factory BPV so it needs to be added to the filter).
I typically run a 50-60 hour interval but the mid season change came at an odd time and I wanted a fresh fill in the sump before we raced.
Looking pretty good me thinks !
This is a stock bottom end carbureted marine 454 with around 1150 hours. Running VR1 20-50 conventional and a special wix filter to work with the cooler (it lacks a factory BPV so it needs to be added to the filter).
I typically run a 50-60 hour interval but the mid season change came at an odd time and I wanted a fresh fill in the sump before we raced.
Looking pretty good me thinks !