Hey Guys,
I'm sure this has been asked before but I don't see any recent posts on it. What's the consensus on using Sythetics in marine engines. Have a 502 magnum (just broke in, trying not to break) that is run in the warm waters here in Florida, fresh water cooled rarely sees 190 degrees. For the most part is run in the 2800-4000 range. Have read a few articles that claim some free HP and more protection for motor. Also what brand and weights have you had luck with.
Thanks,
Rich