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When you say pre-ignition are you talking about it not shutting down right away? I've heard it refered to as dieseling, not that it's the proper term....anyway mine does that if I come off plane and shut down, when picking up a skiier/wakeboarder etc...,
I just purchased a previously owned '93 Sea Ray Overnighter Mercruiser v8. Unfortunately without a manual and can't find one anywhere. Any chance you could readers digest what it says about gasolines containing alcohol?Sorry I thought it was covered in Dave and Jeremy's posting in the link but here is what the Mercury Manual of your boat says.
Page 40
Fuel Requirements:
Important - Use of improper gasoline can damage your engine. Engine damage resulting from the use of improper gasoline is considered misuse of the enngine, and damage caused thereby will not be covered under the limited warranty.
Fuel Rating - Mercury Mercruiser engines will operate satisfactorily when using a major brand of unleaded gasoline meeting the following specifications:
USA and Canada - having a posted pump Octane Rating of 87 (R+M)/2 minimum. Premium gasonline [92 (R+M)/w Octane] is also acceptable. Do NOT use leaded gasoline.
It goes on to talk about using reformulated gasolines and gasolines containing alcohol.
Fresh e10 at my local gas stations that gets refilled every couple days for $2.89. Or non ethanol gas that’s been sitting in the tank for who knows how long for $3.54? I’ll take the e10. The evils of 10% ethanol gas have been waaay overblown! Just my opinion of course.
I just purchased a previously owned '93 Sea Ray Overnighter Mercruiser v8. Unfortunately without a manual and can't find one anywhere. Any chance you could readers digest what it says about gasolines containing alcohol?
Fresh e10 at my local gas stations that gets refilled every couple days for $2.89. Or non ethanol gas that’s been sitting in the tank for who knows how long for $3.54? I’ll take the e10. The evils of 10% ethanol gas have been waaay overblown! Just my opinion of course.