tjmayjr
Member
Hello Gentlemen,
I own a 2004 200 HPDI Yamaha. I have been hearing conflicting stories about which octane to use. I moor my boat at Mt. Sinai Harbor on Long Island, and have access to ValveTech high octane fuel @ Ralphs Fishing Station. Last year I ran 87 Octane with no problems. I was told by another mechanic I know that the lower octane fuel can cause overheating in the cylinder causing the cylinder to fail. What are your thoughts on this? Also, what brand of fuel? Thanks.
Tom
I own a 2004 200 HPDI Yamaha. I have been hearing conflicting stories about which octane to use. I moor my boat at Mt. Sinai Harbor on Long Island, and have access to ValveTech high octane fuel @ Ralphs Fishing Station. Last year I ran 87 Octane with no problems. I was told by another mechanic I know that the lower octane fuel can cause overheating in the cylinder causing the cylinder to fail. What are your thoughts on this? Also, what brand of fuel? Thanks.
Tom