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clayhubler



Joined: 03 Aug 2019
Posts: 280
City/Region: La Center
State or Province: WA
C-Dory Year: 2003
C-Dory Model: 22 Cruiser
Vessel Name: Hammerhead
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PostPosted: Sun Jul 11, 2021 7:04 pm    Post subject: Fuel grades Reply with quote

I've always used non-ethanol 87 grade for my boat with 2003 honda bf40s.

I'm in the keys right now and I cannot find on the water fuel except in 90 or 91. Will the motors run ok with the higher grade fuel? Anybody using it? I don't want to pull the boat out every time I need to refuel.

Thanks

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ssobol



Joined: 27 Oct 2012
Posts: 3362
City/Region: SW Michigan
State or Province: MI
C-Dory Year: 2008
C-Dory Model: 22 Cruiser
Vessel Name: SoBELLE
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PostPosted: Sun Jul 11, 2021 8:24 pm    Post subject: Reply with quote

They will work fine on any grade gas you put in them (except for 88 which is 15% ethanol).

The higher octanes allow for better performance (or even normal operation) in engines that can use or require the higher octane. Higher compression ratio engines usually require higher octane gas to prevent detonation.

Your BF40s are not that type of engine.

For instance, my Nissan Pathfinder runs fine on 87 gas. But there is a sticker on the full filler door that says "For best performance use Premium Grade Gasoline". Never been able to tell the difference.
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clayhubler



Joined: 03 Aug 2019
Posts: 280
City/Region: La Center
State or Province: WA
C-Dory Year: 2003
C-Dory Model: 22 Cruiser
Vessel Name: Hammerhead
Photos: Hammerhead
PostPosted: Sun Jul 11, 2021 9:37 pm    Post subject: Reply with quote

Thanks ssobol
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Barry Rietz



Joined: 21 Jun 2006
Posts: 409
City/Region: Sierra Vista
State or Province: AZ
PostPosted: Sun Jul 11, 2021 9:59 pm    Post subject: Reply with quote

Clay:
This chart may be helpful while you are in Florida;https://www.pure-gas.org/extensions/maps.jsp?statecode=FL

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Barry Rietz
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