First of all, I tried the search function and the most recent thread I found was 2020 so I am starting a new thread.

I just got word from my dealer, my 2023 SL400 build date is 7/13. Hopefully, all goes well it is built and to the dealer by 7/25. That should be in my hands around the end of July. I have a week long lake vacation 8/13-8/20. I want to break in the engine correctly. The dealer just said no full ballast for the first 10 hours, then have the 20 hour service. I read a couple threads with varying opinions.

This is from the 2018 Indmar manual:

Break-in Steps
NOTICE: Do not exceed maximum RPM recommended
for your engine.
1. For the first hour, do not exceed 2000 RPM; vary
RPM continuously.
2. For the second hour, do not exceed 3000 RPM; vary
the RPM regularly.
3. For the next seven hours, do not exceed 4000 RPM;
vary the RPM regularly.

The 2022 Indmar manual just says:

Do not exceed maximum RPM recommended for your engine.

Anyone have some guidance for me? This will be my first new boat. My previous boat was 11 years old when I purchased it. My dealer doesn't seem to think I need to follow any specific guidelines, just don't overdo it the first 10 hours.

Thanks everyone!!