RodneyBR
Member
The previous owner of my 09 FZ6 said to use only Shell 91, since it's a NON-ETHANOL PREMIUM 91 fuel.
Owner's manual calls for 86 or higher.
Also in the owner's manual: ethanol up to 10% is okay. It's a mandatory anti-pollution additive in many regions so it's tough to avoid. Just use a stabilizer (e.g., Sta-Bil) in the fuel if it sits for a long time, like over winter.
Opinions on what is best will vary -- but this is what Yamaha calls for.
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Canada's octane rating system is the same as USA's: (R+M)/2
Octane rating - Wikipedia, the free encyclopedia
I'm in Ontario and I run regular in it full time with absolutely no issues, I will fill up with premium and put some seafoam in the tank for when it sits over the winter but that's it, the worry with ethanol is that it can absorb water which can become a problem if your leaving it sitting in your tank for extended periods of time.
That's why gas at marine pumps is so expensive, its not just a mark up for having a boat, they only serve premium because the environment and storage time boats usually experience promote water absorption hense 100% ethanol free.
Yup. I use regular also. I experimented with premium, non-ethanol and got around 2 more mpgs. Not worth the extra cost. She runs just fine with regular 87, with ethanol.So basically, I should shop wasting my money on 91 and go with 87.
Ethanol is bad.....for a few bucks its a NO-BRAINER.....
http://www.goldeagle.com/UserFiles/file/Ethanol 411/Ethanol -- The Good, The Bad, and the Ugly.pdf
Run it if you have no other choices or a cheeeepskate......
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regular gas in Ontario right now is about 1.38/L and expected to keep rising into the summer.
Some say that higher octane fuel (like 91 vs. 87) reduces engine knocking, correct?