Panther

One more, I'm goin to bed, I'm shot!

JCPERF

Yeah we know

Panther

The motors were hummin today. Northeast winds made the ride up and back a lot of fun! I felt bad for some of the smaller boats cause they got beat up pretty good.

Panther

Sak, everything ok yesterday? Chuck said something about gas??


Hunster, where those pics at?

sakoutis3

I have 100 gal's of 89 on board I want to idle more of it off before I mix it with the 92. The last thing I need is more problems.

mr_velocity

You can run them wot day and night not having a problem with 89. That is all I run unless I advance the spark to 38 degrees. Talk to Sterling, you'll make the most power running the lowest octane before getting detonation.

If you want to get rid of it fast I'll be more than happy to siphon it out for you

mr_velocity

I was so pissed off in the morning to have any fun. I hate waiting for the SAME F&#@ing person every single year. You would think just once the boat would start and he would be on time. Gotta say, at least he's consistent, he always has problems.

Panther

It was still a fun day even with the delays. You know, they do have doctors and specialist's you can talk to about this..

The ride home was the best part anyway! I saw clear under Larry's boat and your boat a bunch of times. Larry said there was one time when we were rolling where said I must have been out of the water for at least 50-75 ft and we were flat and level.

Boating the past couple weeks have been excellent. I only wish I had BMax's last year...

sakoutis3

I don't run Sterlings I run Mercs. I wouldn't take a chance with the detonation its not worth it. With all this fuel on board its just an excuse to run the boat one night after work anyway. And I can't stand waiting for the same people myself it drives me nuts sometimes I just leave em its not worth ruinnig my day.

Panther

Yup, looks like you need 91 or better for that motor.

"Fuel/Oil Recommendation FAQ's

377 SC, 525SC, 575 SCi, 600SC, 600 SCi, 800 SC, 850 SCi, 900 SC, and 1075 SCi US/CAN - 91 (R+M)/2 minimum octane unleaded regular or premium without alcohol, DO NOT USE Leaded Gasoline NON US/CAN - 98 RON minimum octane major brand of unleaded regular or premium without alcohol (Note 3) None Required


Notes:
- If gasoline with alcohol must be used, periodically inspect complete fuel system for leaks and do not store fuel in boat's fuel tank for long periods of time.
- To increase valve life on all MerCruiser engines, the following recommendations should be considered:
Use a propeller that allows engine to operate at or near the top of its maximum RPM range when at full throttle with a normal boat load.
- Operation at 3/4 throttle setting or lower is recommended.
- Refrain from prolonged operation at maximum (full throttle) RPM.
- If unleaded gasoline is not available, use a major brand of leaded gasoline."


Also, Mercury designs their computers to run on certain Octane ratings. The 500/525 used to run like crap on 93 cause they were designed to run best on regular.