the engine is a volvo penta 5.0 v8 from 1999. Is ARX a good idea for those engines? They have a different operation situation than autos, but do they get dirty? Will ARX do any noticeable difference? Maybe just start to add the 3oz for maintenance?
yep, boats run quite hard at near full throttle or idle. They get maybe 100hrs per year.
Maybe no risk of sludge, varnish or dirt under those conditions?
We have cleaned many inboard engines as well as GM 350 Powered
boats. Results same as car engine and if you look at what it cost to clean your boats engine, Auto-Rx is a great choice.
Application is by hours run.