fuel

[1_led_zeppelin]

Can I use 87 octane with 10% ethanol or do i need reg 85 for my 85 HP us marine motor. I have to mix oil with it. thanks

 

[Frank Acampora]

Regular 87 octane pump gasoline is FINE Now, you mentioned 10% ethanol. That opens a can of worms EVERYBODY--well, half the forum-- is going to answer with the absolute horror stories about 10% ethanol and the other half of the forum members will chime in about how ethanol in gas does no harm. I have been running 87 octane w 10% ethanol for years with no ill effects. Sure, fuel lines do harden and fuel pump diaphragms do wrinkle and get stiff but this happens anyway with non ethanol gas.

 

[Jiggz]

As Frank mentioned, I am with the 87-Oct-10% ethanol boys! Lol! Just like him I am cheap and I mean cheap like bullet proof and water proof tight! In fact, that is the reason I am in this forum or else I would have had a mechanic do it all for me! Sure I walk like a China man squeezing my butt cheeks together to save on leg work but that's how tight and cheap I am!

Oh did I also mention I only use Walmart's $11/gal 2-cycle oil? Yup, it is TC3 and I don't see any reason to pay a penny more! Lol

 

[1_led_zeppelin]

Thanks. Its hard to find any gas stations around here that have reg unleaded anymore. And about the only one that's easy to get in with a boat is sams club

 

[Sea Stomper]

My experience with ethanol is good for the last 9 years with a chrysler 85. The oil mix stabilizes the ethanol gasoline. I've always let it sit with full tanks for 6 months in the winter and then just start it and use it in May. No issues. The 2 stroke chryslers of the 70's vintage eat ethanol like they love it. A 4 stroke is a different story. Without the oil in the gas, it will turn to junk over a fairly short period of time.